or jerks (tic-like or myoclonic-like movements) involving any part of the face, neck, trunk or limbs. In addition, some patients may have bizarre gait or difficulties with their balance that are often ...

Patients may also experience abnormal postures of their limbs or neck (dystonia), painful rigidity, limb jerking (myoclonus), lack of movement (akinesia) and eventually irreversible contractures with ...