{"Name":"Cholestanol storage disease","DiseaseID__c":"GARD:0005622","id":5622,"encodedName":"cholestanol-storage-disease","IsDeleted":false,"Disease_Name_Full__c":"Cholestanol storage disease","Xref_IDs__c":"423022690; 63246000; C0238052; C84628; D019294; DOID:4810; MEDGEN:116041; MONDO:0008948; OMIM:213700; ORPHA:909","USA_Estimate__c":"50,000","No_of_Specialist_Tagsa__c":12,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":2,"World_Estimate__c":"80,000 to 800,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":2,"No_of_Disease_Descriptions__c":4,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0008948","Disease_Description__c":"Cerebrotendinous xanthomatosis (CTX) is an anomaly of bile acid synthesis (see this term) characterized by neonatal cholestasis, childhood-onset cataract, adolescent to young adult-onset tendon xanthomata, and brain xanthomata with adult-onset neurologic dysfunction.","GARD_Name__c":"Cholestanol storage disease","GARD_Synonym__c":"cerebral cholesterinosis; cerebrotendinous cholesterinosis; cerebrotendinous xanthomatosis; cholestanolosis; ctx; ctx - cerebrotendinous xanthomatosis; ctx: cerebrotendinous xanthomatosis; sterol 27-hydroxylase deficiency; van bogaert-scherer-epstein disease; van bogaert-scherer-epstein syndrome","Curated_Disease_Description_Source__c":"GARD:0005622","Curated_Disease_Description__c":"Cerebrotendinous xanthomatosis is a disorder characterized by abnormal storage of fats (lipids) in many areas of the body. People with this disorder cannot break down certain lipids effectively, specifically different forms of cholesterol, so these fats accumulate in the body in the form of fatty yellow nodules called xanthomas. These xanthomas are most commonly found in the brain and in connective tissue called tendons that attach muscle to bone, which is reflected in the condition name (cerebro- meaning brain and -tendinous referring to tendons). People with cerebrotendinous xanthomatosis often develop neurological problems in early adulthood that are thought to be caused by an abnormal accumulation of fats and an increasing number of xanthomas in the brain. These neurological problems include recurrent seizures (epilepsy), movement disorders, impaired speech (dysarthria), loss of sensation in the arms and legs (peripheral neuropathy), decline in intellectual function (dementia), hallucinations, and depression. Xanthomas can accumulate in the fatty substance that insulates and protects nerves (myelin), causing the destruction of myelin and disrupting nerve signaling in the brain. Degeneration (atrophy) of brain tissue caused by excess lipid deposits also contributes to the neurological problems. Xanthomas in the tendons begin to form in early adulthood. The most common areas for xanthomas to develop are tendons in the hands, elbows, knees, neck, and in the Achilles tendon, which connects the heel of the foot to the calf muscles in the leg. Tendon xanthomas may cause discomfort and interfere with tendon flexibility. While many affected people develop tendon xanthomas, these nodules may not be easily visible underneath the skin. Other features of cerebrotendinous xanthomatosis include clouding of the lenses of the eyes (cataracts) and chronic diarrhea in childhood; a reduced ability to produce and release a digestive fluid called bile (cholestasis), which can lead to a yellowing of the skin or whites of the eyes (jaundice); and progressively brittle bones that are prone to fracture (osteoporosis). People with cerebrotendinous xanthomatosis are also at an increased risk of developing cardiovascular disease or respiratory failure because of lipid accumulation in the heart or lungs, respectively. If untreated, the signs and symptoms related to cerebrotendinous xanthomatosis worsen over time; however, this condition varies greatly among those who are affected.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"50,000","Age_at_Onset_Snippet_Text__c":"as a Newborn and as an Infant","SourceID__c":"ORPHA:909","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0008948","ORPHANET_ID__c":"ORPHA:909","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Xantomatosis cerebrotendinosa","Spanish_Description_Source__c":"ORPHA:909","Spanish_Description__c":"La xantomatosis cerebrotendinosa (CTX) es una anomalía de la síntesis de ácidos biliares (consulte este término) caracterizada por colestasis neonatal, cataratas de aparición en la infancia, xantomas del tendón de aparición en la adolescencia y en jóvenes, y xantoma del cerebro con disfunción neurológica de aparición en adultos.","Spanish_Disease_Name__c":"xantomatosis cerebrotendinosa","Spanish_GARD_Synonym__c":"deficiencia de esterol 27-hidroxilasa","Category_Linearization__c":"ORPHA:68367","icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"Cerebrotendinous xanthomatosis is a disorder characterized by abnormal storage of fats (lipids) in many areas of the body. People with this disorder cannot break down certain lipids effectively, specifically different forms of cholesterol, so these fats accumulate in the body in the form of fatty yellow nodules called xanthomas. These xanthomas are most commonly found in the brain and in connective tissue called tendons that attach muscle to bone, which is reflected in the condition name (cerebro- meaning brain and -tendinous referring to tendons). People with cerebrotendinous xanthomatosis often develop neurological problems in early adulthood that are thought to be caused by an abnormal accumulation of fats and an increasing number of xanthomas in the brain. These neurological problems include recurrent seizures (epilepsy), movement disorders, impaired speech (dysarthria), loss of sensation in the arms and legs (peripheral neuropathy), decline in intellectual function (dementia), hallucinations, and depression. Xanthomas can accumulate in the fatty substance that insulates and protects nerves (myelin), causing the destruction of myelin and disrupting nerve signaling in the brain. Degeneration (atrophy) of brain tissue caused by excess lipid deposits also contributes to the neurological problems. Xanthomas in the tendons begin to form in early adulthood. The most common areas for xanthomas to develop are tendons in the hands, elbows, knees, neck, and in the Achilles tendon, which connects the heel of the foot to the calf muscles in the leg. Tendon xanthomas may cause discomfort and interfere with tendon flexibility. While many affected people develop tendon xanthomas, these nodules may not be easily visible underneath the skin. Other features of cerebrotendinous xanthomatosis include clouding of the lenses of the eyes (cataracts) and chronic diarrhea in childhood; a reduced ability to produce and release a digestive fluid called bile (cholestasis), which can lead to a yellowing of the skin or whites of the eyes (jaundice); and progressively brittle bones that are prone to fracture (osteoporosis). People with cerebrotendinous xanthomatosis are also at an increased risk of developing cardiovascular disease or respiratory failure because of lipid accumulation in the heart or lungs, respectively. If untreated, the signs and symptoms related to cerebrotendinous xanthomatosis worsen over time; however, this condition varies greatly among those who are affected.","Curated_Disease_Description_Source__c":"GARD:0005622","GARD_Synonym__c":"cerebral cholesterinosis; cerebrotendinous cholesterinosis; cerebrotendinous xanthomatosis; cholestanolosis; ctx; ctx - cerebrotendinous xanthomatosis; ctx: cerebrotendinous xanthomatosis; sterol 27-hydroxylase deficiency; van bogaert-scherer-epstein disease; van bogaert-scherer-epstein syndrome","Name":"Cholestanol storage disease","Curated_USA_Estimate__c":"50,000","estimateUsa":"50,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"CTX Alliance","Website__c":"https://ctxalliance.org/"},{"Account_Name__c":"Foundation of the National Lipid Association","Website__c":"https://www.learnyourlipids.com/"},{"Account_Name__c":"Childhood Dementia Initiative","Website__c":"https://www.childhooddementia.org/"},{"Account_Name__c":"Alianza Iberoamericana de Enfermedades Raras o Poco Frecuentes","Website__c":"https://aliber.org/web/"},{"Account_Name__c":"Federación Mexicana de Enfermedades Raras (FEMEXER)","Website__c":"http://www.femexer.org/"},{"Account_Name__c":"Federación Española de Enfermedades Raras","Website__c":"https://enfermedades-raras.org/"},{"Account_Name__c":"Federación Colombiana de Enfermedades Raras","Website__c":"http://www.fecoer.org"},{"Account_Name__c":"Federación Argentina de Enfermedades Poco Frecuentes","Website__c":"https://fadepof.org.ar/"},{"Account_Name__c":"Asociación Todos Unidos Enfermedades Raras Uruguay","Website__c":"https://atueru.org.uy/"},{"Account_Name__c":"Metabolic Support UK","Website__c":"https://www.metabolicsupportuk.org"},{"Account_Name__c":"United Leukodystrophy Foundation","Website__c":"https://ulf.org/"},{"Account_Name__c":"Alex The Leukodystrophy Charity","Website__c":"https://www.alextlc.org"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Genetics","Tag_Category__c":"Cause;Disease Category;Specialist","category_description":"Genetic diseases affect the DNA, or genetic instructions, which directs how tissues, organs, and body systems function.","curated_tag_name":"Genetic diseases"},{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Ophthalmology","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Endocrine","Tag_Category__c":"Disease Category;Specialist","category_description":"Endocrine diseases affect hormone production or how the body responds to a specific hormone(s).","curated_tag_name":"Endocrine diseases"},{"Tag_Name__c":"Gastroenterology","Tag_Category__c":"Disease Category;Specialist","category_description":"Gastrointestinal diseases, or digestive diseases, affect the esophagus, stomach, small intestine, large intestine, liver, gallbladder, or pancreas.","curated_tag_name":"Gastrointestinal diseases"},{"Tag_Name__c":"Psychiatry","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Dermatology","Tag_Category__c":"Account;Disease Category;Specialist","category_description":"Skin diseases, or integumentary system diseases, affect the skin, hair, nails, sweat glands, or oil glands.","curated_tag_name":"Skin diseases"},{"Tag_Name__c":"Inborn Errors of Metabolism","Tag_Category__c":"Cause;Disease Category","category_description":"Inherited metabolic diseases, or inborn errors of metabolism, are a group of genetic diseases that affect the ability of the body's cells to convert food into energy.","curated_tag_name":"Inherited metabolic diseases"},{"Tag_Name__c":"Leukodystrophy","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Leukodystrophies are a group of genetic neurological diseases that affect the white matter of the brain and spinal cord.","curated_tag_name":"Leukodystrophies"},{"Tag_Name__c":"Lysosomal","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Lysosomal storage diseases are a group of genetic metabolic diseases that affect the ability of the body's cells to break down substances and remove toxins.","curated_tag_name":"Lysosomal storage diseases"},{"Tag_Name__c":"Peripheral Neuropathy","Tag_Category__c":"Account","curated_tag_name":"Peripheral neuropathy"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Ataxia","Tag_Category__c":"Account","curated_tag_name":"Ataxia"},{"Tag_Name__c":"Anterior segment of Eye","Tag_Category__c":"Specialist","curated_tag_name":"Front part of eye disease"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Neuromuscular medicine","Tag_Category__c":"Specialist","curated_tag_name":"Neuromuscular medicine"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:909"},{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:909"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C0238052"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0005622","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1409","Source__c":"Gene Review","Xref__c":"NBK1409"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=63246000","Source__c":"C0238052; MONDO:0008948","Xref__c":"63246000"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C84628","Source__c":"C0238052; MONDO:0008948","Xref__c":"C84628"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A4810","Source__c":"MONDO:0008948","Xref__c":"DOID:4810"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C019294","Source__c":"C0238052; MONDO:0008948","Xref__c":"D019294"},{"URL__c":"https://www.orpha.net/en/disease/detail/909","Source__c":"C0238052; MONDO:0008948; ORPHA:909","Xref__c":"ORPHA:909"},{"URL__c":"https://www.omim.org/entry/213700","Source__c":"C0238052; MONDO:0008948; ORPHA:909","Xref__c":"OMIM:213700"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=116041","Source__c":"C0238052","Xref__c":"MEDGEN:116041"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0238052","Source__c":"C0238052","Xref__c":"C0238052"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0008948","Source__c":"GARD:0005622","Xref__c":"MONDO:0008948"},{"URL__c":"https://medlineplus.gov/genetics/condition/cerebrotendinous-xanthomatosis","Source__c":"GARD:0005622","Xref__c":"https://medlineplus.gov/genetics/condition/cerebrotendinous-xanthomatosis"},{"URL__c":"https://secure.ssa.gov/apps10/poms.nsf/lnx/0423022690","Xref__c":"423022690"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"CYP27A1","GHR_URL__c":"https://medlineplus.gov/genetics/gene/cyp27a1","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Upturning of the big toe (and sometimes fanning of the other toes) in response to stimulation of the sole of the foot. If the Babinski sign is present it can indicate damage to the corticospinal tract.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003487","HPO_Synonym__c":"Extensor plantar reflexes; Extensor plantar response; Extensor plantar responses; Positive Babinski sign","HPO_Name__c":"Babinski sign","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Exfoliation of a tooth more than 2 SD earlier than the normal age for the deciduous teeth and not related to traume or neglect. Exfoliation of a permanent tooth is per se abnormal.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006480","HPO_Synonym__c":"Early tooth loss; Loss of teeth; Premature teeth loss; Premature tooth loss","HPO_Name__c":"Premature loss of teeth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A reduction in the speed at which electrical signals propagate along the axon of a neuron.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000762","HPO_Synonym__c":"Decreased NCV; Decreased nerve conduction velocities; Delayed nerve conduction velocity; Reduced nerve conduction velocities; Slow nerve conduction velocity; Slowed nerve conduction velocities","HPO_Name__c":"Decreased nerve conduction velocity","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_NCV"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001138","HPO_Synonym__c":"Damaged optic nerve","HPO_Name__c":"Optic neuropathy","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001249","HPO_Synonym__c":"Intellectual disability; Mental deficiency; Mental retardation; Mental retardation, nonspecific; Mental-retardation; Nonprogressive intellectual disability; Nonprogressive mental retardation","HPO_Name__c":"Intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the dentate nucleus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100321","HPO_Synonym__c":"Abnormality of the dentate nucleus","HPO_Name__c":"Abnormal dentate nucleus morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Myelinated retinal nerve fiber (MRNF) layer is a rare and mostly benign congenital anomaly in which the retinal nerve fibers anterior to the lamina cribrosa have a myelin sheath.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007922","HPO_Synonym__c":"MRNF; Retinal striation","HPO_Name__c":"Hypermyelinated retinal nerve fibers","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A personality disorder is a deeply ingrained pattern of behavior of a specified kind that deviates markedly from the norms of generally accepted behavior. It is typically apparent by the time of adolescence and causes long-term difficulties in personal relationships or functioning in society.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012075","HPO_Name__c":"Personality disorder","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A neurological condition related to lesions of the basal ganglia leading to typical abnormalities including akinesia (inability to initiate changes in activity and perform volitional movements rapidly and easily), muscular rigidity (continuous contraction of muscles with constant resistance to passive movement), chorea (widespread arrhythmic movements of a forcible, rapid, jerky, and restless nature), athetosis (inability to sustain the muscles of the fingers, toes, or other group of muscles in a fixed position), and akathisia (inability to remain motionless).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002071","HPO_Synonym__c":"Extrapyramidal dysfunction; Extrapyramidal signs; Extrapyramidal symptoms; Extrapyramidal syndrome; Extrapyramidal tract signs","HPO_Name__c":"Abnormality of extrapyramidal motor function","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Atrophy of the optic nerve. Optic atrophy results from the death of the retinal ganglion cell axons that comprise the optic nerve and manifesting as a pale optic nerve on fundoscopy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000648","HPO_Synonym__c":"Optic nerve atrophy; Optic-nerve degeneration","HPO_Name__c":"Optic atrophy","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A pale yellow discoloration of the optic disc (the area of the optic nerve head in the retina). The optic disc normally has a pinkish hue with a central yellowish depression.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000543","HPO_Synonym__c":"Pale optic disc","HPO_Name__c":"Optic disc pallor","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduction of the diameter of the coronary arteries as the result of an accumulation of atheromatous plaques within the walls of the coronary arteries before age of 45.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005181","HPO_Synonym__c":"Premature coronary artery disease","HPO_Name__c":"Premature coronary artery atherosclerosis","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of cataract that is not apparent at birth but that arises in childhood or adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001118","HPO_Name__c":"Juvenile cataract","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Deficiency of thyroid hormone.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000821","HPO_Synonym__c":"Low T4; Underactive thyroid","HPO_Name__c":"Hypothyroidism","Feature_System__c":"Endocrine System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002310","HPO_Synonym__c":"Orofacial dyskinesias","HPO_Name__c":"Orofacial dyskinesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Peripheral neuropathy is a general term for any disorder of the peripheral nervous system. The main clinical features used to classify peripheral neuropathy are distribution, type (mainly demyelinating versus mainly axonal), duration, and course.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009830","HPO_Synonym__c":"Peripheral nerve damage; Peripheral neuritis","HPO_Name__c":"Peripheral neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormally increased tendency to fractures of bones caused by an abnormal reduction in bone strength that is generally associated with an increased risk of fracture.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002659","HPO_Synonym__c":"Abnormal susceptibility to fractures; Bone fragility; Frequent broken bones; Increased bone fragility; Increased susceptibility to fractures; Increased tendency to fractures","HPO_Name__c":"Increased susceptibility to fractures","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormal cognition is characterized by deficits in thinking, reasoning, or remembering.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100543","HPO_Synonym__c":"Abnormality of cognition; Cognitive abnormality; Cognitive defects; Cognitive deficits; Cognitive impairment; Intellectual impairment","HPO_Name__c":"Cognitive impairment","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An eye that is protruding anterior to the plane of the face to a greater extent than is typical.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000520","HPO_Synonym__c":"Anterior bulging of the globe; Anterior bulging of the globe of eye; Bulging eye; Exophthalmos; Eyeballs bulging out; Ocular proptosis; Prominent eyes; Prominent globes; Protruding eyes; Protrusio bulbi","HPO_Name__c":"Proptosis","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Ataxia refers to impaired coordination of voluntary muscle movement. Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001251","HPO_Synonym__c":"Cerebellar ataxia","HPO_Name__c":"Ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A resting tremor occurs when muscles are at rest and becomes less noticeable or disappears when the affected muscles are moved. Resting tremors are often slow and coarse.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002322","HPO_Synonym__c":"Rest tremor; Resting tremor; Tremor at rest","HPO_Name__c":"Resting tremor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"An abnormality of the primary sensation that is mediated by peripheral nerves (pain, temperature, touch, vibration, joint position). The word hypoesthesia (or hypesthesia) refers to a reduction in cutaneous sensation to a specific type of testing.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003474","HPO_Synonym__c":"Sensory impairment","HPO_Name__c":"Somatic sensory dysfunction","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly of a finger.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001167","HPO_Synonym__c":"Abnormalities of the fingers; Abnormality of finger","HPO_Name__c":"Abnormal finger morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A structural abnormality of retinal vasculature.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008046","HPO_Synonym__c":"Abnormality of retina blood vessels; Abnormality of the retinal vasculature","HPO_Name__c":"Abnormal retinal vascular morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Dysarthric speech is a general description referring to a neurological speech disorder characterized by poor articulation. Depending on the involved neurological structures, dysarthria may be further classified as spastic, flaccid, ataxic, hyperkinetic and hypokinetic, or mixed.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001260","HPO_Synonym__c":"Difficulty articulating speech; Dysarthric speech","HPO_Name__c":"Dysarthria","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001347","HPO_Synonym__c":"Increased deep tendon reflexes; Increased reflexes","HPO_Name__c":"Hyperreflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Unlocalized atrophy of the brain with decreased total brain matter volume and increased ventricular size.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002283","HPO_Synonym__c":"Diffuse brain atrophy; Generalized brain atrophy; Generalized brain degeneration; Generalized cerebral atrophy","HPO_Name__c":"Global brain atrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000505","HPO_Synonym__c":"Impaired vision; Loss of eyesight; Poor vision; Visual impairment","HPO_Name__c":"Visual impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly of visually evoked potentials (VEP), which are electrical potentials, initiated by brief visual stimuli, which are recorded from the scalp overlying the visual cortex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000649","HPO_Synonym__c":"Abnormal vision evoked potentials; Abnormal visual evoked potential; Abnormal visual evoked responses; Abnormal visual-evoked potentials; VEP abnormalities","HPO_Name__c":"Abnormality of visual evoked potentials","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Palatal tremor (PT) is an involuntary, rhythmic and oscillatory movement of the soft palate. PT is a rare type of tremor involving the soft palate. It can be unilateral or bilateral.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010530","HPO_Synonym__c":"Palatal myoclonus","HPO_Name__c":"Palatal tremor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Atypical behavior is an abnormality in a person's actions that can be controlled or modulated by the will of the individual. While abnormal behaviors can be difficult to control, they are distinct from other abnormal actions that cannot be affected by the individual's will.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000708","HPO_Synonym__c":"Behavioral abnormality; Behavioral changes; Behavioral disorders; Behavioral disturbances; Behavioral problems; Behavioral symptoms; Behavioral/psychiatric abnormalities; Behavioural symptoms; Behavioural/Psychiatric abnormality; Psychiatric disorders; Psychiatric disturbances","HPO_Name__c":"Atypical behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly identified by motor evoked potentials (MEPs). MEPs are measured following single-pulse or repetitive transcranial magnetic stimulation and can be used for the assessment of the excitability of the motor cortex and the integrity of conduction along the central and peripheral motor pathways.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012896","HPO_Name__c":"Abnormal motor evoked potentials","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Attention deficit hyperactivity disorder (ADHD) manifests at age 2-3 years or by first grade at the latest. The main symptoms are distractibility, impulsivity, hyperactivity, and often trouble organizing tasks and projects, difficulty going to sleep, and social problems from being aggressive, loud, or impatient.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007018","HPO_Synonym__c":"ADHD; Attention deficit; Attention deficit disorder; Attention deficit-hyperactivity disorder; Attention deficits; Childhood attention deficit/hyperactivity disorder","HPO_Name__c":"Attention deficit hyperactivity disorder","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001257","HPO_Synonym__c":"Involuntary muscle stiffness, contraction, or spasm; Muscle spasticity; Muscular spasticity","HPO_Name__c":"Spasticity","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Frequently experiencing feelings of being down, miserable, and/or hopeless; struggling to recover from these moods; having a pessimistic outlook on the future; feeling a pervasive sense of shame; having a low self-worth; experiencing thoughts of suicide and engaging in suicidal behavior.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000716","HPO_Synonym__c":"Depression; Depressive episode; Depressivity","HPO_Name__c":"Depression","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Frequent thoughts about or preoccupation with killing oneself.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0031589","HPO_Synonym__c":"Suicidal perseveration; Suicidality","HPO_Name__c":"Suicidal ideation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Behavior or an act aimed at harming a person, animal, or physical property (e.g., acts of physical violence; shouting, swearing, and using harsh language; slashing someone's tires).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000718","HPO_Synonym__c":"Aggression; Aggressive behavior; Aggressiveness","HPO_Name__c":"Aggressive behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Perceptions in a conscious and awake state that, in the absence of external stimuli, have qualities of real perception. These perceptions are vivid, substantial, and located in external objective space.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000738","HPO_Synonym__c":"Hallucination; Hallucinations; Sensory hallucination","HPO_Name__c":"Hallucinations","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of somatosensory evoked potentials (SSEP), i.e., of the electrical signals of sensation going from the body to the brain in response to a defined stimulus. Recording electrodes are placed over the scalp, spine, and peripheral nerves proximal to the stimulation site. Clinical studies generally use electrical stimulation of peripheral nerves to elicit potentials. SSEP testing determines whether peripheral sensory nerves are able to transmit sensory information like pain, temperature, and touch to the brain. Abnormal SSEPs can result from dysfunction at the level of the peripheral nerve, plexus, spinal root, spinal cord, brain stem, thalamocortical projections, or primary somatosensory cortex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007377","HPO_Synonym__c":"Abnormality of SSEPs","HPO_Name__c":"Abnormality of somatosensory evoked potentials","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Any structural abnormality of the cerebellum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001317","HPO_Synonym__c":"Abnormality of the cerebellum; Cerebellar abnormalities; Cerebellar abnormality; Cerebellar anomaly; Cerebellar signs","HPO_Name__c":"Abnormal cerebellum morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the auditory evoked potentials, which are used to trace the signal generated by a sound, from the cochlear nerve, through the lateral lemniscus, to the medial geniculate nucleus, and to the cortex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006958","HPO_Synonym__c":"Abnormal brainstem auditory-evoked potentials","HPO_Name__c":"Abnormal auditory evoked potentials","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of chronic diarrhea, which is usually taken to mean diarrhea that has persisted for over 4 weeks.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002028","HPO_Synonym__c":"Chronic diarrhea","HPO_Name__c":"Chronic diarrhea","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Cerebellar atrophy is defined as a cerebellum with initially normal structures, in a posterior fossa with normal size, which displays enlarged fissures (interfolial spaces) in comparison to the foliae secondary to loss of tissue. Cerebellar atrophy implies irreversible loss of tissue and result from an ongoing progressive disease until a final stage is reached or a single injury, e.g. an intoxication or infectious event.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001272","HPO_Synonym__c":"Atrophic cerebellum; Degeneration of cerebellum","HPO_Name__c":"Cerebellar atrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007495","HPO_Synonym__c":"Precociously senile appearance; Prematurely aged appearance","HPO_Name__c":"Prematurely aged appearance","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Myelopathy is an descriptive term, referring to pathology leading to a neurologic deficit related to the spinal cord. The clinical diagnosis of myelopathy requires a detailed history and physical examination to define the clinical syndrome. Neuroimaging is indicated in most instances of new-onset myelopathy. It is indicated also when the worsening of a myelopathy is unexplained.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002196","HPO_Name__c":"Myelopathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increase in height of the medial longitudinal arch of the foot that does not flatten on weight bearing (i.e., a distinctly hollow form of the sole of the foot when it is bearing weight).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001761","HPO_Synonym__c":"Cavus foot; High-arched foot","HPO_Name__c":"Pes cavus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004416","HPO_Synonym__c":"Premature atherosclerosis","HPO_Name__c":"Precocious atherosclerosis","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Any structural anomaly of the lung.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002088","HPO_Synonym__c":"Abnormality of lung structure; Abnormality of the lungs; Abnormally shaped lung; Unusual lung shape","HPO_Name__c":"Abnormal lung morphology","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007272","HPO_Synonym__c":"Progressive mental and motor deterioration","HPO_Name__c":"Progressive psychomotor deterioration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0040078","HPO_Name__c":"Axonal degeneration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Osteoporosis is a systemic skeletal disease characterized by low bone density and microarchitectural deterioration of bone tissue with a consequent increase in bone fragility. According to the WHO criteria, osteoporosis is defined as a BMD that lies 2.5 standard deviations or more below the average value for young healthy adults (a T-score below -2.5 SD).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000939","HPO_Name__c":"Osteoporosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality affecting one or both hands.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001155","HPO_Synonym__c":"Abnormal hands; Abnormality of the hand; Hand anomalies; Hand deformities","HPO_Name__c":"Abnormality of the hand","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the eyelids.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000492","HPO_Synonym__c":"Abnormality of the eyelid; Abnormality of the eyelids","HPO_Name__c":"Abnormal eyelid morphology","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Gliosis is the focal proliferation of glial cells in the central nervous system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002171","HPO_Synonym__c":"Cerebral gliosis; Excess astrocytes in brain","HPO_Name__c":"Gliosis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Functional neurological abnormalities related to dysfunction of the pyramidal tract.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007256","HPO_Synonym__c":"Corticospinal signs; Pyramidal signs; Pyramidal tract signs","HPO_Name__c":"Abnormal pyramidal sign","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Concentration or activity of an enzyme is above or below the limits of normal in the blood circulation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012379","HPO_Name__c":"Abnormal circulating enzyme concentration or activity","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A brighter than expected signal on magnetic resonance imaging emanating from the cerebral white matter.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030890","HPO_Synonym__c":"White matter hyperintensity","HPO_Name__c":"Hyperintensity of cerebral white matter on MRI","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Imaging_MRI"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormally increased level of blood lactate (2-hydroxypropanoic acid). Lactate is produced from pyruvate by lactate dehydrogenase during normal metabolism. The terms lactate and lactic acid are often used interchangeably but lactate (the component measured in blood) is strictly a weak base whereas lactic acid is the corresponding acid. Lactic acidosis is often used clinically to describe elevated lactate but should be reserved for cases where there is a corresponding acidosis (pH below 7.35).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002151","HPO_Synonym__c":"Increased blood lactate; Increased serum lactate","HPO_Name__c":"Increased circulating lactate concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Muscular atrophy affecting muscles in the distal portions of the extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003693","HPO_Synonym__c":"Amyotrophy of distal limb muscles; Distal amyotrophy, especially of the hands and feet; Distal limb muscle atrophy; Distal muscle atrophy; Distal muscle atrophy, upper and lower limbs; Distal muscle degeneration; Distal muscle wasting; Distal muscular atrophy; Muscle atrophy, distal","HPO_Name__c":"Distal amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008516","HPO_Name__c":"Abnormality of the vertebral spinous processes","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A loss of myelin from nerve fibers in the central nervous system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007305","HPO_Synonym__c":"Demyelination in central white matter","HPO_Name__c":"CNS demyelination","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An increase in the level of choline-containing compounds in the brain identified by magnetic resonance spectroscopy (MRS).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012706","HPO_Name__c":"Elevated brain choline level by MRS","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Imaging_MRI"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduced attention span characterized by distractibility and impulsivity.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000736","HPO_Synonym__c":"Easily distracted; Easy distractibility; High distractibility; Poor attention span; Problem paying attention; Short attention span","HPO_Name__c":"Short attention span","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0200125","HPO_Name__c":"Mitochondrial respiratory chain defects","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally increased muscular tone that causes fixed abnormal postures. There is a slow, intermittent twisting motion that leads to exaggerated turning and posture of the extremities and trunk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001332","HPO_Synonym__c":"Dystonic movements","HPO_Name__c":"Dystonia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A state of excessive motor activity that is associated with mental distress or a feeling of substantial unease or inner tension. Distinguished from restlessness by the increased level of emotional distress and negative intensity of the experience. Agitation has a significant level of physical activity that is typically threatening to the self or others.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000713","HPO_Synonym__c":"Psychomotor agitation","HPO_Name__c":"Agitation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An increase in the level of lactate in the brain identified by magnetic resonance spectroscopy (MRS).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012707","HPO_Name__c":"Elevated brain lactate level by MRS","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Imaging_MRI"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000639","HPO_Synonym__c":"Involuntary, rapid, rhythmic eye movements","HPO_Name__c":"Nystagmus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of xanthomas (intra-and extra-cellular accumulations of cholesterol) extensor tendons (typically over knuckles, Achilles tendon, knee, and elbows).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010874","HPO_Synonym__c":"Tendon xanthomas","HPO_Name__c":"Tendon xanthomatosis","Feature_System__c":"Skin System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An anomaly of the cerebellar peduncles. The superior, middle, and inferior cerebellar peduncles emerge from the cerebellum. The superior cerebellar penduncles connect the cerebellum to the midbrain, the middle cerebellar peduncles connect the cerebellum to the pons, and the inferior cerebellar peduncle connects the medulla spinalis and medulla oblongata with the cerebellum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011931","HPO_Synonym__c":"Abnormality of the cerebellar peduncle","HPO_Name__c":"Abnormal cerebellar peduncle morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the plantar part of foot, that is of the soles of the feet.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100872","HPO_Synonym__c":"Minor feet anomalies","HPO_Name__c":"Abnormality of the plantar skin of foot","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Neonatal jaundice refers to a yellowing of the skin and other tissues of a newborn infant as a result of increased concentrations of bilirubin in the blood. Neonatal jaundice affects over half of all newborns to some extent in the first week of life. Prolonged neonatal jaundice is said to be present if the jaundice persists for longer than 14 days in term infants and 21 days in preterm infants.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006579","HPO_Synonym__c":"Neonatal jaundice; Prolonged yellowing of skin in newborn","HPO_Name__c":"Prolonged neonatal jaundice","Feature_System__c":"Skin System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the Achilles tendon.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005109","HPO_Synonym__c":"Abnormality of the Achilles tendon; Abnormality of the calcaneal tendon","HPO_Name__c":"Abnormal Achilles tendon morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Partial loss of the ability to move the lower limbs accompanied by spasticity of the lower limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002313","HPO_Name__c":"Spastic paraparesis","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Hard, pebble-like deposits that form within the gallbladder.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001081","HPO_Synonym__c":"Gallstones","HPO_Name__c":"Cholelithiasis","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Autism is a neurodevelopmental disorder characterized by impaired social interaction and communication, and by restricted and repetitive behavior. Autism begins in childhood. It is marked by the presence of markedly abnormal or impaired development in social interaction and communication and a markedly restricted repertoire of activity and interest. Manifestations of the disorder vary greatly depending on the developmental level and chronological age of the individual (DSM-IV).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000717","HPO_Synonym__c":"Autism","HPO_Name__c":"Autism","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An anomaly of the joint that connects the upper and the lower arm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009811","HPO_Synonym__c":"Abnormality of the elbow; Abnormality of the elbows","HPO_Name__c":"Abnormality of the elbow","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the globus pallidus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002453","HPO_Name__c":"Abnormal globus pallidus morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Osteopenia is a term to define bone density that is not normal but also not as low as osteoporosis. By definition from the World Health Organization osteopenia is defined by bone densitometry as a T score -1 to -2.5.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000938","HPO_Synonym__c":"Generalized osteopenia","HPO_Name__c":"Osteopenia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Neurodevelopmental delay (NDD) refers to delays in the maturation of the brain and central nervous system; infants and young children with NDD may experience delays in the development of one or more skills including gross motor abilities, fine-motor coordination, language abilities and ability to solve increasingly complex problems.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012758","HPO_Synonym__c":"NDD","HPO_Name__c":"Neurodevelopmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Weakness or partial paralysis in the lower limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002385","HPO_Synonym__c":"Partial paralysis of legs","HPO_Name__c":"Paraparesis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Characteristic neurologic anomaly resulting from degeneration of dopamine-generating cells in the substantia nigra, a region of the midbrain, characterized clinically by shaking, rigidity, slowness of movement and difficulty with walking and gait.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001300","HPO_Name__c":"Parkinsonism","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The term gait disturbance can refer to any disruption of the ability to walk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001288","HPO_Synonym__c":"Abnormal gait; Abnormal walk; Difficulty in walking; Gait abnormalities; Gait difficulties; Gait disturbances; Impaired gait; Walking disability","HPO_Name__c":"Gait disturbance","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Impairment of certain skills such as reading or writing, coordination, self-control, or attention that interfere with the ability to learn. The impairment is not related to a global deficiency of intelligence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001328","HPO_Name__c":"Specific learning disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the neck.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000464","HPO_Synonym__c":"Abnormality of the neck; Anomaly of the neck","HPO_Name__c":"Abnormality of the neck","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormality of the tibia (shinbone).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002992","HPO_Synonym__c":"Abnormality of the shankbone; Abnormality of the shinbone; Abnormality of tibia morphology","HPO_Name__c":"Abnormal tibia morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the interatrial septum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011994","HPO_Synonym__c":"Abnormal interatrial septum morphology; Abnormality of the atrial septum","HPO_Name__c":"Abnormal atrial septum morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Over curvature of the thoracic region, leading to a round back or if sever to a hump.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002942","HPO_Synonym__c":"Accentuated thoracic kyphosis; Exaggerated thoracic kyphosis","HPO_Name__c":"Thoracic kyphosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Long-tract signs refer to symptoms that are attributable to the involvement of the long fiber tracts in the spinal cord, which connect the spinal cord to the brain and mediate spinal and motor functions. These include spasticity, hyperreflexia, and abnormal reflexes such as Babinski or Hoffman's sign. If possible, it is preferable to use the precise HPO terms for these abnormalities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002423","HPO_Synonym__c":"Long tract signs; Long-tract signs","HPO_Name__c":"Long-tract sign","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:909","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Any anomaly of the structure of the femur.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002823","HPO_Synonym__c":"Abnormality of femur morphology; Abnormality of the femora; Abnormality of the thighbone","HPO_Name__c":"Abnormal femur morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics","Inborn Errors of Metabolism","Leukodystrophy","Lysosomal"],"Disease Category":["Genetics","Neurology","Endocrine","Gastroenterology","Dermatology","Inborn Errors of Metabolism","Leukodystrophy","Lysosomal"],"Specialist":["Genetics","Neurology","Ophthalmology","Endocrine","Gastroenterology","Psychiatry","Dermatology","Epilepsy","Anterior segment of Eye","Neurodevelopmental disabilities","Neuromuscular medicine","Pediatrics"],"Account":["Dermatology","Leukodystrophy","Lysosomal","Peripheral Neuropathy","Epilepsy","Ataxia"]},"synonyms":["cerebral cholesterinosis"," cerebrotendinous cholesterinosis"," cerebrotendinous xanthomatosis"," cholestanolosis"," ctx"," ctx - cerebrotendinous xanthomatosis"," ctx: cerebrotendinous xanthomatosis"," sterol 27-hydroxylase deficiency"," van bogaert-scherer-epstein disease"," van bogaert-scherer-epstein syndrome"],"spanishId":13351,"spanishName":"xantomatosis-cerebrotendinosa"}