cerebelloparenchymal disorder myoclonic cerebellar dyssynergia https://github.com/monarch-initiative/mondo/issues/4429 https://www.malacards.org/card/myoclonic_cerebellar_dyssynergia GARD:0009256 myoclonus and ataxia Ramsay Hunt syndrome type 1 dyssynergia cerebellaris progressiva A condition marked by progressive cerebellar ataxia combined with myoclonus usually presenting in the third decade of life or later. Additional clinical features may include generalized and focal seizures, spasticity, and dyskinesias. Autosomal recessive and autosomal dominant patterns of inheritance have been reported. Pathologically, the dentate nucleus and brachium conjunctivum of the cerebellum are atrophic, with variable involvement of the spinal cord, cerebellar cortex, and basal ganglia. (From Joynt, Clinical Neurology, 1991, Ch37, pp60-1) Ramsay Hunt cerebellar syndrome cerebelloparenchymal disorder type 5 EFO:1001053 DOID:12707 dentatorubral atrophy OMIM:213400 dentate cerebellar ataxia progressive myoclonus ataxia Ramsay Hunt syndrome type 1 (formerly) cerebelloparenchymal disorder V dyssynergia cerebellaris myoclonica MEDGEN:483579 primary dentatum atrophy MESH:D002527 OMIM:159700 UMLS:C3489626 SCTID:73495003 MONDO:0008945 Ramsay Hunt syndrome CPD5 inherited neurodegenerative disorder