The patient displayed bradyphrenia and cerebellar dysarthria characterized by scanning speech. The cranial nerves were functioning properly. Bilateral postural and kinetic tremor with an intentional component was observed, accompanied with myoclonic jerks and appendicular bradykinesia in the hands and fingers, with minor bradykinesia in the feet. Mild bilateral ataxia, primarily affecting the upper limbs, was noted. The gait exhibited an expanded base width and irregular tandem ambulation. Mild rigidity was observed in the cervical region, as well as in the right and left upper and lower limbs. Mild dyskinesias manifested in the lower limbs during upper limb movements, accompanied by oromandibular dyskinesias upon activation.

Magnetic resonance imaging (T1 sequence) revealed hyperintensity in the basal ganglia and cerebellar peduncles