Open AccessCortical hemiballism: A case of hemiballismus associated with parietal lobe infarct
Author(s) -
Pragya Shrestha,
Janak Adhikari,
Dilli Ram Poudel,
Ranjan Pathak,
Paras Karmacharya
Publication year - 2015
Publication title -
north american journal of medical sciences
Language(s) - English
Resource type - Journals
eISSN - 2250-1541
pISSN - 1947-2714
DOI - 10.4103/1947-2714.172850
Subject(s) - medicine , parietal lobe , infarction , neuroscience , pathology , psychiatry , psychology , myocardial infarction
Hemiballismus is characterized by involuntary, irregular, large amplitude, and violent flinging movements of limbs. Stroke (middle and posterior cerebral artery) remains the most common etiology with 2/3 being lacunar. Lesions outside the substantia niagra (STN) can cause hemiballism, and only a minority by STN lesions, unlike the classical belief. Compared to those arising from STN, cortical hemiballismus is usually less severe with a good prognosis.