A case of acute hemiballism and neurogenic pain associated with parietal lobe infarct

Acute involuntary movement like hemichorea, hemiballism and athetosis are extremely rare after cortical infarction. A 56-year-old, right-handed, hypertensive and diabetic man presented as acute onset of involuntary movements of his right arm.Neurological examination revealed, involuntary, brisk, high-amplitude,very fast, unpredictable movements of the proximal segment of the left upper extremity and mild apraxia of right hand,else everything was normal.He also had unbearable burning pain deep in the right arm.Involuntary movements settled with Haloperidol.MRI scan revealed acute infarct in the right anterior parietal cortex while basal ganglia structures were normal