disease shares features of cerebellar ataxia olivopontocerebellar atrophy https://www.malacards.org/card/olivopontocerebellar_atrophy SCTID:67761004 DOID:14784 Thomas' syndrome UMLS:C0028968 GARD:0027595 A group of sporadic and inherited neurodegenerative disorders affecting the cerebellum, pons, and inferior olives. OPCA ICD9:333.0 NCIT:C84947 MEDGEN:10435 MESH:D009849 icd11.foundation:1467584080 MONDO:0002017 neurodegenerative disease