| Namespace | disease_ontology | Obsolete | false |
| description | A neurodegenerative disease that is characterized by a wide range of clinical manifestations, including pyramidal and extrapyramidal symptoms, cerebellar ataxia, cognitive decline and dementia, peripheral neuropathy, and autonomic dysfunction, and that has_material_basis_in heterozygous repeat expansion (CGG) in the 5-prime untranslated region of the NOTCH2NLC gene on chromosome 1q21. |