{"Name":"Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome","DiseaseID__c":"GARD:0017934","id":17934,"encodedName":"mitochondrial-myopathy-cerebellar-ataxia-pigmentary-retinopathy-syndrome","IsDeleted":false,"Disease_Name_Full__c":"Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome","Xref_IDs__c":"C4540096; MEDGEN:1620960; MONDO:0044714; OMIM:617675; ORPHA:502423","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":5,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":2,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"ORPHA:502423","Disease_Description__c":"A rare mitochondrial myopathy characterized by motor developmental delay (in infancy), growth impairment and mostly proximal muscle weakness caused by a muscular dystrophy. Muscle biopsy presents myopathic abnormalities and decreased mtDNA content. Electromyography (EMG) shows a myopathic process and serum creatine kinase is increased. The disease is also characterized by early onset non-progressive cerebellar atrophy (particularly cerebellar vermis and hemispheres), corticospinal tract dysfunction, and global or partial cerebral atrophy on brain MRI. Additionally, some patients presented with cognitive deficiencies, skeletal abnormalities, tremors, and retinopathy.","GARD_Name__c":"Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome","GARD_Synonym__c":"mitochondrial myopathy-cerebellar atrophy-pigmentary retinopathy syndrome; mitochondrial myopathy, cerebellar ataxia, pigmentary retinopathy syndrome; mitochondrial myopathy, cerebellar atrophy, pigmentary retinopathy syndrome; myopathy, mitochondrial, and ataxia","Curated_Disease_Description_Source__c":"ORPHA:502423","Curated_Disease_Description__c":"A rare mitochondrial myopathy characterized by motor developmental delay (in infancy), growth impairment and mostly proximal muscle weakness caused by a muscular dystrophy. Muscle biopsy presents myopathic abnormalities and decreased mtDNA content. Electromyography (EMG) shows a myopathic process and serum creatine kinase is increased. The disease is also characterized by early onset non-progressive cerebellar atrophy (particularly cerebellar vermis and hemispheres), corticospinal tract dysfunction, and global or partial cerebral atrophy on brain MRI. Additionally, some patients presented with cognitive deficiencies, skeletal abnormalities, tremors, and retinopathy.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Infant and as an Adult","SourceID__c":"ORPHA:502423","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0044714","ORPHANET_ID__c":"ORPHA:502423","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de miopatía mitocondrial-ataxia cerebelosa-retinopatía pigmentaria","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"síndrome de miopatía mitocondrial-ataxia cerebelosa-retinopatía pigmentaria","Spanish_GARD_Synonym__c":"síndrome de miopatía mitocondrial-atrofia cerebelosa-retinopatía pigmentaria","Category_Linearization__c":"ORPHA:93890","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":"A rare mitochondrial myopathy characterized by motor developmental delay (in infancy), growth impairment and mostly proximal muscle weakness caused by a muscular dystrophy. Muscle biopsy presents myopathic abnormalities and decreased mtDNA content. Electromyography (EMG) shows a myopathic process and serum creatine kinase is increased. The disease is also characterized by early onset non-progressive cerebellar atrophy (particularly cerebellar vermis and hemispheres), corticospinal tract dysfunction, and global or partial cerebral atrophy on brain MRI. Additionally, some patients presented with cognitive deficiencies, skeletal abnormalities, tremors, and retinopathy.","Curated_Disease_Description_Source__c":"ORPHA:502423","GARD_Synonym__c":"mitochondrial myopathy-cerebellar atrophy-pigmentary retinopathy syndrome; mitochondrial myopathy, cerebellar ataxia, pigmentary retinopathy syndrome; mitochondrial myopathy, cerebellar atrophy, pigmentary retinopathy syndrome; myopathy, mitochondrial, and ataxia","Name":"Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"National Ataxia Foundation","Website__c":"https://ataxia.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":"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":"Mitochondrial","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Mitochondrial diseases are a group of genetic diseases that affect the ability of the body's cells to make energy.","curated_tag_name":"Mitochondrial diseases"},{"Tag_Name__c":"Ataxia","Tag_Category__c":"Account","curated_tag_name":"Ataxia"},{"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":"Adult","Provided_By__c":"ORPHA:502423"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:502423"}],"External_Identifier_Disease__c":[{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C4540096","Source__c":"C4540096","Xref__c":"C4540096"},{"URL__c":"https://www.omim.org/entry/617675","Source__c":"C4540096; MONDO:0044714; ORPHA:502423","Xref__c":"OMIM:617675"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=1620960","Source__c":"C4540096","Xref__c":"MEDGEN:1620960"},{"URL__c":"https://www.orpha.net/en/disease/detail/502423","Source__c":"C4540096; MONDO:0044714; ORPHA:502423","Xref__c":"ORPHA:502423"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0044714","Source__c":"GARD:0017934","Xref__c":"MONDO:0044714"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1237514002","Source__c":"C4540096","Xref__c":"1237514002"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"MSTO1","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A lack of strength of the proximal muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003701","HPO_Synonym__c":"Muscle weakness, proximal; Proximal limb muscle weakness; Proximal limb weakness; Weakness in muscles of upper arms and upper legs","HPO_Name__c":"Proximal muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced strength of one or more muscles innervated by the facial nerve (the seventh cranial nerve).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030319","HPO_Synonym__c":"Decreased facial muscle strength; Decreased strength of facial muscles; Face weakness; Facial muscle weakness; Facial weakness; Myasthenia of facial muscles; Reduced facial muscle strength; Weakness of face; Weakness of facial musculature","HPO_Name__c":"Weakness of facial musculature","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of Developmental delay characterized by a delay in acquiring motor skills.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001270","HPO_Synonym__c":"Delay in development of motor milestones; Delay in motor development; Delayed development of motor milestones; Delayed early motor milestones; Delayed motor development; Delayed motor milestones; Locomotor delay; Motor developmental delay; Motor developmental milestones not achieved; Motor retardation; Retarded motor development; Slow development of motor milestones","HPO_Name__c":"Motor delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality in the size of the ocular globe (eyeball).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100887","HPO_Synonym__c":"Abnormality of eyeball size; Eye size difference","HPO_Name__c":"Abnormality of globe size","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increased amount of glycogen in muscle tissue.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009051","HPO_Name__c":"Increased muscle glycogen content","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008180","HPO_Synonym__c":"Mildly elevated CPK; Mildly elevated creatine phosphokinase; Mildly elevated serum CK; Mildly elevated serum CPK; Mildly elevated serum phospho-CK; Mildly increased creatine kinase; Mildly increased serum creatine kinase; Moderately elevated serum CK; Moderately elevated serum CPK; Moderately increased serum creatine kinase","HPO_Name__c":"Mildly elevated creatine kinase","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:502423","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A deficiency or slowing down of growth pre- and postnatally.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001510","HPO_Synonym__c":"Delayed growth; Growth deficiency; Growth delay; Growth failure; Growth retardation; Poor growth; Retarded growth","HPO_Name__c":"Growth delay","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Persistent deficits in social interaction and communication and interaction as well as a markedly restricted repertoire of activity and interest as well as repetitive patterns of behavior.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000729","HPO_Synonym__c":"ASD; Pervasive developmental disorder","HPO_Name__c":"Autistic behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Facial height (length) is more than 2 standard deviations above the mean (objective); or, an apparent increase in the height (length) of the face (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000276","HPO_Synonym__c":"Elongation of face; Increased height of face; Increased length of face; Increased vertical dimension of face; Long face; Long facies; Vertical elongation of face; Vertical enlargement of face; Vertical excess of face; Vertical Facial Excess; Vertical hyperplasia of face; Vertical overgrowth of face","HPO_Name__c":"Long face","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A decreased rate of skeletal maturation. Delayed skeletal maturation can be diagnosed on the basis of an estimation of the bone age from radiographs of specific bones in the human body.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002750","HPO_Synonym__c":"Delayed bone age; Delayed bone age before puberty; Delayed bone maturation; Delayed skeletal development; Retarded bone age; Skeletal maturation retardation","HPO_Name__c":"Delayed skeletal maturation","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A height below that which is expected according to age and sex norms. Although there is no universally accepted definition of short stature, many refer to \\\"short stature\\\" as height more than 2 standard deviations below the mean for age and sex (or below the 3rd percentile for age and sex dependent norms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004322","HPO_Synonym__c":"Decreased body height; Height less than 3rd percentile; Short stature; Small stature; Stature below 3rd percentile","HPO_Name__c":"Short stature","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An unintentional, oscillating to-and-fro muscle movement about a joint axis.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001337","HPO_Synonym__c":"Tremor; Tremors","HPO_Name__c":"Tremor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased density of hairs, i.e., and elevated number of hairs per unit area.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100874","HPO_Synonym__c":"Increased follicular density; Increased hair density; Thick hair","HPO_Name__c":"Thick hair","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A mental disorder characterized by a disintegration of thought processes and emotional responsiveness. It most commonly manifests as auditory hallucinations, paranoid or bizarre delusions, or disorganized speech and thinking. It is accompanied by significant social or occupational dysfunction. The onset of symptoms typically occurs in young adulthood, with a global lifetime prevalence of about 1%. This term is not a helpful parent term to describe abnormal experiences.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100753","HPO_Name__c":"Schizophrenia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Joint hypermobility (ability of a joint to move beyond its normal range of motion) affecting many or all joints of the body. In individuals with Joint hypermobility at multiple sites (usually five or more), the term generalized joint hypermobility is preferred.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002761","HPO_Synonym__c":"Generalized joint laxity; Hypermobility of all joints","HPO_Name__c":"Generalized joint hypermobility","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of myopathy associated with mitochondrial disease and characterized by findings on biopsy such as ragged red muscle fibers.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003737","HPO_Name__c":"Mitochondrial myopathy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of abnormal electromyographic patterns indicative of myopathy, such as small-short polyphasic motor unit potentials.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003458","HPO_Synonym__c":"EMG: myopathic changes; EMG: myopathy; Myopathic electromyogram","HPO_Name__c":"EMG: myopathic abnormalities","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Procedure_EMG"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduction of neurologic reflexes such as the knee-jerk reaction.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001265","HPO_Synonym__c":"Decreased reflex response; Decreased reflexes","HPO_Name__c":"Hyporeflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A phenomenon whereby patients are not able to stand up without the use of the hands owing to weakness of the proximal muscles of the lower limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003391","HPO_Synonym__c":"Gower sign; Positive Gower sign; Positive Gowers sign","HPO_Name__c":"Gowers sign","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Uncommon (<1-4%)","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A defect of the chest wall characterized by a depression of the sternum, giving the chest (\\\"pectus\\\") a caved-in (\\\"excavatum\\\") appearance.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000767","HPO_Synonym__c":"Funnel chest","HPO_Name__c":"Pectus excavatum","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A degree of language development that is significantly below the norm for a child of a specified age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000750","HPO_Synonym__c":"Deficiency of speech development; Delayed language development; Delayed speech; Delayed speech acquisition; Delayed speech and language development; Delayed speech development; Impaired speech and language development; Impaired speech development; Language delay; Language delayed; Language development deficit; Late-onset speech development; Poor language development; Speech and language delay; Speech and language difficulties; Speech delay","HPO_Name__c":"Delayed speech and language development","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Generalized muscular hypotonia (abnormally low muscle tone).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001290","HPO_Synonym__c":"Generalized decreased muscle tone; Generalized muscular hypotonia; Hypotonia, generalized","HPO_Name__c":"Generalized hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Developmental hypoplasia of the mandible.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000347","HPO_Synonym__c":"Decreased size of lower jaw; Decreased size of mandible; Hypoplasia of lower jaw; Hypoplasia of mandible; Hypoplastic mandible; Hypoplastic mandible condyle; Hypotrophic lower jaw; Hypotrophic mandible; Little lower jaw; Little mandible; Lower jaw deficiency; Lower jaw hypoplasia; Mandibular deficiency; Mandibular hypoplasia; Mandibular micrognathia; Micrognathia of lower jaw; Micromandible; Robin mandible; Severe hypoplasia of mandible; Small jaw; Small lower jaw; Small mandible; Underdevelopment of lower jaw; Underdevelopment of mandible","HPO_Name__c":"Micrognathia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Interpupillary distance less than 2 SD below the mean (alternatively, the appearance of an decreased interpupillary distance or closely spaced eyes).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000601","HPO_Synonym__c":"Abnormally close eyes; Closely spaced eyes; Decreased distance between eye sockets; Decreased distance between eyes; Decreased interpupillary distance; Decreased orbital separation; Ocular hypotelorism","HPO_Name__c":"Hypotelorism","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of thyroid physiology characterized by excessive secretion of the thyroid hormones thyroxine (i.e., T4) and/or 3,3',5-triiodo-L-thyronine zwitterion (i.e., triiodothyronine or T3).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000836","HPO_Synonym__c":"Overactive thyroid","HPO_Name__c":"Hyperthyroidism","Feature_System__c":"Endocrine System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Cerebellar hypoplasia is a descriptive term implying a cerebellum with a reduced volume, but a normal shape and is stable over time.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001321","HPO_Synonym__c":"Congenital cerebellar hypoplasia; Hypoplasia of cerebellum; Hypoplastic cerebellum; Small cerebellum; Underdeveloped cerebellum","HPO_Name__c":"Cerebellar hypoplasia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of abnormally increased levels of prolactin in the blood. Prolactin is a peptide hormone produced by the anterior pituitary gland that plays a role in breast development and lactation during pregnancy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000870","HPO_Synonym__c":"Hyperprolactinaemia; Hyperprolactinemia; Prolactin excess","HPO_Name__c":"Increased circulating prolactin concentration","Feature_System__c":"Nervous System; Endocrine System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Height of the palate more than 2 SD above the mean (objective) or palatal height at the level of the first permanent molar more than twice the height of the teeth (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000218","HPO_Synonym__c":"Elevated palate; High arched palate; High palate; High, arched palate; High-arched palate; Increased palatal height; Palate high-arched; Palate, high-arched","HPO_Name__c":"High palate","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Pain in muscle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003326","HPO_Synonym__c":"Muscle ache; Muscle pain","HPO_Name__c":"Myalgia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal increase in intracellular lipid droplets In a muscle. The number and size of these drops can increase with somd disorders of lipid metabolism affecting muscle. See PMID 20691590 for histological images.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012240","HPO_Name__c":"Increased intramyocellular lipid droplets","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of an abnormal lateral curvature of the spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002650","HPO_Name__c":"Scoliosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000786","HPO_Name__c":"Primary amenorrhea","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A decreased magnitude of the sensory perception of sound.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000365","HPO_Synonym__c":"Deafness; Hearing defect; Hearing impairment; Hypacusis","HPO_Name__c":"Hearing impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","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:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally high degree of muscle fiber size variation. This phenotypic feature can be observed upon muscle biopsy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003557","HPO_Synonym__c":"Increased fiber size variation; Increased variability in muscle fiber size; Increased variation in fiber size; Increased variation in muscle fiber size; Variation in muscle fiber size","HPO_Name__c":"Increased variability in muscle fiber diameter","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002073","HPO_Synonym__c":"Cerebellar ataxia, progressive; Progressive ataxia","HPO_Name__c":"Progressive cerebellar ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Intense feelings of nervousness, tension, or panic often arise in response to interpersonal stresses. There is worry about the negative effects of past unpleasant experiences and future negative possibilities. Individuals may feel fearful, apprehensive, or threatened by uncertainty, and they may also have fears of falling apart or losing control.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000739","HPO_Synonym__c":"Anxiety; Anxiousness; Excessive, persistent worry and fear","HPO_Name__c":"Anxiety","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Benign neoplasia derived from lipoblasts or lipocytes of white or brown fat. May be angiomatous or hibernomatous.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012032","HPO_Synonym__c":"Fatty lump; Noncancerous fatty lump","HPO_Name__c":"Lipoma","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Mild intellectual disability (ID) is defined as a type of ID characterized by mildly sub-average adaptive functioning and intellectual functioning, with an intelligence quotient (IQ) the range of 50-69.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001256","HPO_Synonym__c":"Intellectual disability, mild; Mental retardation, borderline-mild; Mild and nonprogressive mental retardation; Mild mental retardation","HPO_Name__c":"Mild intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:502423","HPO_Frequency__c":"Frequent (30-79%)","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:502423","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"An abnormality of the retina characterized by pigment deposition. It is typically associated with migration and proliferation of macrophages or retinal pigment epithelial cells into the retina; melanin from these cells causes the pigmentary changes. Pigmentary retinopathy is a common final pathway of many retinal conditions and is often associated with visual loss.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000580","HPO_Synonym__c":"Pigmentary retinal deposits; Retinal pigment clumping; Retinal pigmentary clumping; Retinal pigmentary degeneration","HPO_Name__c":"Pigmentary retinopathy","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics","Inborn Errors of Metabolism","Mitochondrial"],"Disease Category":["Genetics","Neurology","Inborn Errors of Metabolism","Mitochondrial"],"Specialist":["Genetics","Neurology","Neurodevelopmental disabilities","Neuromuscular medicine","Pediatrics"],"Account":["Mitochondrial","Ataxia"]},"synonyms":["mitochondrial myopathy-cerebellar atrophy-pigmentary retinopathy syndrome"," mitochondrial myopathy, cerebellar ataxia, pigmentary retinopathy syndrome"," mitochondrial myopathy, cerebellar atrophy, pigmentary retinopathy syndrome"," myopathy, mitochondrial, and ataxia"]}