Mondo Description Any young-onset Parkinson disease in which the cause of the disease is a mutation in the UCHL1 gene.

Uniprot Description A complex neurodegenerative disorder with manifestations ranging from typical Parkinson disease to dementia with Lewy bodies. Clinical features include parkinsonian symptoms (resting tremor, rigidity, postural instability and bradykinesia), dementia, diffuse Lewy body pathology, autonomic dysfunction, hallucinations and paranoia.