Richards-Rundle syndrome https://www.malacards.org/card/richards_rundle_syndrome MONDO:0009493 icd11.foundation:114583632 SCTID:715415005 MESH:C535674 UMLS:C0796136 ketoaciduria-mental deficiency syndrome Richards-Rundle syndrome is an extremely rare neurodegenerative disorder characterized by progressive spinocerebellar ataxia, sensorineural hearing loss, and hypergonadotropic hypogonadism associated with additional neurological manifestations (such as peripheral muscle wasting, nystagmus, intellectual disability or dementia) and ketoaciduria. ketoaciduria-intellectual disability-ataxia-deafness syndrome OMIM:245100 ketoaciduria - intellectual disability - ataxia - deafness Richards-Rundle syndrome Orphanet:1399 ataxia-deafness-mental retardation syndrome ataxia-deafness-retardation syndrome with ketoaciduria RRNS familial ataxia-hypogonadism syndrome MEDGEN:163219 GARD:0008423 hereditary ataxia