{"Name":"Superficial siderosis","DiseaseID__c":"GARD:0009484","id":9484,"encodedName":"superficial-siderosis","IsDeleted":false,"Disease_Name_Full__c":"Superficial siderosis","Xref_IDs__c":"423022337; C2938918; MEDGEN:1371500; MONDO:0016594; ORPHA:247245","USA_Estimate__c":null,"No_of_Specialist_Tagsa__c":2,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":1,"World_Estimate__c":null,"No_of_HRSA_records__c":0,"Evidence_Based_Score__c":1,"No_of_Disease_Descriptions__c":2,"Disease_Characteristics_Score__c":5,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0016594","Disease_Description__c":"Superficial siderosis is a rare neurologic disease characterized by progressive sensorineural hearing loss, cerebellar ataxia, pyramidal signs, and neuroimaging findings revealing hemosiderin deposits in the spinal and cranial leptomeninges and subpial layer. The disease progresses slowly and patients may present with mild cognitive impairment, nystagmus, dysmetria, spasticity, dysdiadochokinesia, dysarthria, hyperreflexia, and Babinski signs. Additional features reported include dementia, urinary incontinence, anosmia, ageusia, and anisocoria.","GARD_Name__c":"Superficial siderosis","GARD_Synonym__c":"hemosiderosis of the central nervous system; superficial hemosiderosis of the central nervous system; superficial hemosiderosis of the cns; superficial siderosis of central nervous system; superficial siderosis of the central nervous system; superficial siderosis of the cns","Curated_Disease_Description_Source__c":"GARD:0009484","Curated_Disease_Description__c":"Superficial siderosis of the central nervous system is a rare condition that primarily affects the brain. Signs and symptoms generally develop in adulthood and may include hearing loss and cerebellar ataxia. Some affected people may also experience seizures, memory impairment, bladder disturbance, headaches, back pain, and/or dysarthria. Superficial siderosis of the central nervous system is thought to be caused by bleeding into a portion of the brain called the subarachnoid space (the area between the brain and the thin tissues that cover the brain). This bleeding can have a variety of causes, such as trauma, a tumor of the central nervous system, arteriovenous malformations, or an unknown cause. Not all people who experience bleeding into the subarachnoid space go on to develop Superficial siderosis of the central nervous system.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":null,"Age_at_Onset_Snippet_Text__c":"at any time in life","SourceID__c":"ORPHA:247245","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0016594","ORPHANET_ID__c":"ORPHA:247245","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Siderosis superficial","Spanish_Description_Source__c":"ORPHA:247245","Spanish_Description__c":"La siderosis superficial es una enfermedad neurológica poco frecuente caracterizada por pérdida auditiva neurosensorial progresiva, ataxia cerebelosa, signos piramidales y hallazgos de neuroimagen que revelan depósitos de hemosiderina en la leptomeninge espinal y craneal y en las capas subpiales. La enfermedad progresa lentamente y los afectados pueden presentarse con leve deterioro cognitivo, nistagmo, dismetría, espasticidad, disdiadococinesia, disartria, hiperreflexia y signo de Babinski. También se han descrito otros rasgos adicionales que incluyen demencia, incontinencia urinaria, anosmia, ageusia y anisocoria.","Spanish_Disease_Name__c":"siderosis superficial","Spanish_GARD_Synonym__c":"hemosiderosis del sistema nervioso central; hemosiderosis superficial del sistema nervioso central; hemosiderosis superficial del snc; siderosis superficial del sistema nervioso central; siderosis superficial del snc","Category_Linearization__c":"ORPHA:98006","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":"Superficial siderosis of the central nervous system is a rare condition that primarily affects the brain. Signs and symptoms generally develop in adulthood and may include hearing loss and cerebellar ataxia. Some affected people may also experience seizures, memory impairment, bladder disturbance, headaches, back pain, and/or dysarthria. Superficial siderosis of the central nervous system is thought to be caused by bleeding into a portion of the brain called the subarachnoid space (the area between the brain and the thin tissues that cover the brain). This bleeding can have a variety of causes, such as trauma, a tumor of the central nervous system, arteriovenous malformations, or an unknown cause. Not all people who experience bleeding into the subarachnoid space go on to develop Superficial siderosis of the central nervous system.","Curated_Disease_Description_Source__c":"GARD:0009484","GARD_Synonym__c":"hemosiderosis of the central nervous system; superficial hemosiderosis of the central nervous system; superficial hemosiderosis of the cns; superficial siderosis of central nervous system; superficial siderosis of the central nervous system; superficial siderosis of the cns","Name":"Superficial siderosis","estimateUsa":""}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Superficial Siderosis Research Alliance","Website__c":"https://ssra.livingwithss.com/"}],"GARD_Disease_Tag__c":[{"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":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"All ages","Provided_By__c":"ORPHA:247245"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.orpha.net/en/disease/detail/247245","Source__c":"C2938918; MONDO:0016594; ORPHA:247245","Xref__c":"ORPHA:247245"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=1371500","Source__c":"C2938918","Xref__c":"MEDGEN:1371500"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C2938918","Source__c":"C2938918","Xref__c":"C2938918"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0016594","Source__c":"GARD:0009484","Xref__c":"MONDO:0016594"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=733200004","Source__c":"C2938918","Xref__c":"733200004"},{"URL__c":"https://secure.ssa.gov/apps10/poms.nsf/lnx/0423022337","Xref__c":"423022337"}],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the cerebrospinal fluid (CSF).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002921","HPO_Synonym__c":"Abnormal CSF findings; Abnormality of the cerebrospinal fluid; Abnormality of the CSF","HPO_Name__c":"Abnormal cerebrospinal fluid morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal susceptibility to bleeding, often referred to as a bleeding diathesis. A bleeding diathesis may be related to vascular, platelet and coagulation defects.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001892","HPO_Synonym__c":"Bleeding diathesis; Bleeding tendency; Hemorrhagic diathesis","HPO_Name__c":"Abnormal bleeding","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An inability to perceive odors. This is a general term describing inability to smell arising in any part of the process of smelling from absorption of odorants into the nasal mucous overlying the olfactory epithelium, diffusion to the cilia, binding to olfactory receptor sites, generation of action potentials in olfactory neurons, and perception of a smell.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000458","HPO_Synonym__c":"Loss of smell; Lost smell","HPO_Name__c":"Anosmia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduced ability to perceive painful stimuli.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007328","HPO_Synonym__c":"Decreased pain sensation; Decreased pinprick sensation; Impaired pain sensation","HPO_Name__c":"Impaired pain sensation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Dysfunction of the urinary bladder.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000009","HPO_Synonym__c":"Poor bladder function","HPO_Name__c":"Functional abnormality of the bladder","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormal sensations such as tingling, pricking, or numbness of the skin with no apparent physical cause.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003401","HPO_Synonym__c":"Paresthesias; Pins and needles feeling; Tingling","HPO_Name__c":"Paresthesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A reduced ability to discriminate between different temperatures.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010829","HPO_Synonym__c":"Abnormality of temperature sensation; Impaired temperature sensation; Impaired thermal sensitivity; Loss of temperature sensation","HPO_Name__c":"Impaired temperature sensation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A kind of ataxia that affects movements of the extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002070","HPO_Synonym__c":"Appendicular ataxia","HPO_Name__c":"Limb ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormal gyral pattern characterized by abnormalities of sulcal depth or orientation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0032398","HPO_Name__c":"Dysgyria","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002359","HPO_Synonym__c":"Frequent falls","HPO_Name__c":"Frequent falls","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Very frequent (80-99%)","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:247245","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormality of the corpus callosum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001273","HPO_Synonym__c":"Abnormal corpus callosum; Abnormality of the corpus callosum; Corpus callosum abnormality","HPO_Name__c":"Abnormal corpus callosum morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An increase in size of the subarachnoid space associated with the lateral cerebral sulcus (Sylvian fissure).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100952","HPO_Synonym__c":"Enlarged lateral fissure; Enlarged lateral sulcus; Enlarged sylvian fissure","HPO_Name__c":"Enlarged sylvian cistern","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A loss of global cognitive ability of sufficient amount to interfere with normal social or occupational function. Dementia represents a loss of previously present cognitive abilities, generally in adults, and can affect memory, thinking, language, judgment, and behavior.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000726","HPO_Synonym__c":"Dementia; Dementia, progressive; Progressive dementia","HPO_Name__c":"Dementia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Frequent (30-79%)","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:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Hemorrhage occurring between the arachnoid mater and the pia mater.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002138","HPO_Synonym__c":"Subarachnoid hemorrhage","HPO_Name__c":"Subarachnoid hemorrhage","Feature_System__c":"Nervous System; Cardiovascular System; Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002317","HPO_Synonym__c":"Gait instability; Unsteady walk","HPO_Name__c":"Unsteady gait","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","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:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormal sensation of spinning while the body is actually stationary.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002321","HPO_Synonym__c":"Dizzy spell","HPO_Name__c":"Vertigo","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","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:247245","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Weakness of the muscles of the legs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007340","HPO_Synonym__c":"Leg weakness; Lower extremity weakness; Lower limb muscle weakness; Lower limb weakness; Muscle weakness in lower limbs","HPO_Name__c":"Lower limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An impairment of memory as manifested by a reduced ability to remember things such as dates and names, and increased forgetfulness.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002354","HPO_Synonym__c":"Amnesia; Forgetfulness; Memory impairment; Memory loss; Memory problems; Poor memory","HPO_Name__c":"Memory impairment","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A neoplasm of the central nervous system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100006","HPO_Synonym__c":"Neoplasm of the CNS; Tumors of the central nervous system","HPO_Name__c":"Neoplasm of the central nervous system","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Increased concentration of protein in the cerebrospinal fluid.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002922","HPO_Synonym__c":"Cerebrospinal fluid protein increased; Cerebrospinal fluid with increased protein; Elevated cerebrospinal fluid protein; Elevated csf protein; Hyperproteinorrhachia; Increased CSF protein; Increased protein in csf; Spinal fluid protein elevated","HPO_Name__c":"Increased CSF protein concentration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A structural abnormality of the spinal cord (myelon).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002143","HPO_Synonym__c":"Abnormality of the spinal cord","HPO_Name__c":"Abnormal spinal cord morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Uncommon (<1-4%)","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:247245","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A form of sensorineural hearing impairment that affects both ears.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008619","HPO_Synonym__c":"Bilateral nerve deafness; Bilateral sensorineural deafness; Bilateral sensorineural hearing loss; Hearing loss, sensorineural, bilateral","HPO_Name__c":"Bilateral sensorineural hearing impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of hemorrhage within the body.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011029","HPO_Synonym__c":"Internal bleeding","HPO_Name__c":"Internal hemorrhage","Feature_System__c":"Cardiovascular System; Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any structural anomaly of the vestibulocochlear nerve. The vestibulocochlear nerve consists of the vestibular and cochlear nerves, also known as cranial nerve eight (CN VIII). Each nerve has distinct nuclei within the brainstem. The vestibular nerve is primarily responsible for maintaining body balance and eye movements, while the cochlear nerve is responsible for hearing.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009591","HPO_Synonym__c":"Abnormal eighth cranial nerve morphology; Abnormality of the vestibulocochlear nerve; Abnormality of the VIIIth cranial nerve","HPO_Name__c":"Abnormal vestibulocochlear nerve morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A type of ataxia characterized by the inability to carry out movements with the correct range and motion across the plane of more than one joint related to incorrect estimation of the distances required for targeted movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001310","HPO_Synonym__c":"Lack of coordination of movement","HPO_Name__c":"Dysmetria","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An anomalous configuration of blood vessels that shunts arterial blood directly into veins without passing through the capillaries.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100026","HPO_Name__c":"Arteriovenous malformation","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","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:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003698","HPO_Synonym__c":"Difficulty in standing; Standing instability","HPO_Name__c":"Difficulty standing","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001934","HPO_Synonym__c":"Excessive bleeding after minor trauma; Frequent bleeding with trauma; Prolonged bleeding after minor trauma","HPO_Name__c":"Persistent bleeding after trauma","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A sensation of unease in the stomach together with an urge to vomit.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002018","HPO_Synonym__c":"Nausea","HPO_Name__c":"Nausea","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"An anomaly of the vertebral artery, the major artery of the neck that originates from the subclavian artery and merges to form the single midline basilar artery in a complex called the vertebrobasilar system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030321","HPO_Synonym__c":"Abnormality of the vertebral artery","HPO_Name__c":"Abnormal vertebral artery morphology","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormal coordination of muscles involved in speech.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001350","HPO_Synonym__c":"Slurred speech","HPO_Name__c":"Slurred speech","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","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:247245","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of gait ataxia displaying progression of clinical severity.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007240","HPO_Synonym__c":"Gait ataxia, progressive","HPO_Name__c":"Progressive gait ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002013","HPO_Synonym__c":"Emesis; Throwing up; Vomiting","HPO_Name__c":"Vomiting","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Any abnormality of the brachial nerve plexus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0045052","HPO_Name__c":"Abnormality of the brachial nerve plexus","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the back.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003418","HPO_Synonym__c":"Back pain","HPO_Name__c":"Back pain","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006827","HPO_Synonym__c":"Degeneration of the spinal cord","HPO_Name__c":"Atrophy of the spinal cord","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Cephalgia, or pain sensed in various parts of the head, not confined to the area of distribution of any nerve.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002315","HPO_Synonym__c":"Headache; Headaches","HPO_Name__c":"Headache","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007366","HPO_Synonym__c":"Brainstem atrophy","HPO_Name__c":"Atrophy/Degeneration affecting the brainstem","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An anomaly of the vermis of cerebellum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002334","HPO_Synonym__c":"Abnormality of the cerebellar vermis","HPO_Name__c":"Abnormal cerebellar vermis morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A type of ataxia characterized by the impairment of the ability to perform rapidly alternating movements, such as pronating and supinating his or her hand on the dorsum of the other hand as rapidly as possible.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002075","HPO_Synonym__c":"Difficulty performing quick and alternating movements; Dysdiadochokinesia","HPO_Name__c":"Dysdiadochokinesis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Inability to perceive certain odorants (implies that the sense of smell is maintained for other classes of odorants).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010633","HPO_Name__c":"Partial anosmia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:247245","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Anisocoria, or unequal pupil size, may represent a benign physiologic variant or a manifestation of disease.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009916","HPO_Synonym__c":"Asymmetric pupil sizes; Asymmetry of the pupils; Unequal pupil dilatation; Unequal pupil size","HPO_Name__c":"Anisocoria","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Disease Category":["Neurology"],"Specialist":["Neurology","Pediatrics"]},"synonyms":["hemosiderosis of the central nervous system"," superficial hemosiderosis of the central nervous system"," superficial hemosiderosis of the cns"," superficial siderosis of central nervous system"," superficial siderosis of the central nervous system"," superficial siderosis of the cns"]}