| A form of Parkinson disease with age of onset of more than 50 years, tremor at rest, gait complaints and falls, bradykinesia, rigidity and painful cramps. Patients usually present a low risk of developing non-motor symptoms, dystonia, dyskinesia and levodopa-induced dyskinesia. The exact etiology is still unknown but mutations in the genes SNCA (4q21.3-q22), LRRK2 (12q12), and VPS35 (16q12) have been implicated in its pathogenesis. Transmission is autosomal dominant. |
