[Lesions of the basal ganglia in mumps. Clinical and neuroradiological development in a case].

Among mumps complications, encephalitis is the most frequent. Involvement of the basal ganglia has been previously reported associated to some other encephalic lesions. In one case, changes were confined to basal ganglia and occurred at the 10th day of evolution of mumps. Clinically a bilateral extrapyramidal syndrome was present without other neurological disorders. CT scan showed bilateral lesions in the area of the basal ganglia. The course was favorable. The neurological examination and CT scan were normal 6 months later. Such complications should be prevented by vaccination.