Kannepalli NRVL, Yadav R, Vazhayil V, Somanna S, Pal PK. Ipsilateral Hemichorea-hemiballism in a Case of Postoperative Stroke.
TREMOR AND OTHER HYPERKINETIC MOVEMENTS (NEW YORK, N.Y.) 2016;
6:359. [PMID:
27127720 PMCID:
PMC4825330 DOI:
10.7916/d8c53kqr]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/20/2016] [Indexed: 12/20/2022]
Abstract
Background
Ipsilateral hemiballismus refers to the rare occurrence of hemiballism developing on the same side of a brain lesion.
Case report
We describe a rare case of postoperative ipsilateral hemiballism in a patient who underwent pituitary adenoma resection and experienced a right internal cerebral artery territory infarct. We review the literature on hemichorea hemiballismus (HCHB) and explore various mechanisms for its occurrence.
Discussion
Only three cases of ipsilateral hemiballism have been described, and the exact pathophysiology remains unknown. A dominant left hemisphere with corpus callosal connections to the right basal ganglia is the most probable explanation for this unusual event.
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