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Semin Neurol 2001; 21(1): 075-084
DOI: 10.1055/s-2001-13122
Copyright © 2001 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001, USA. Tel.: +1(212) 584-4662

Unusual Causes of Hemifacial Spasm

Néstor Gálvez-Jiménez>1 , Maurice R. Hanson,1 , Mehul Desai,2
  • 1Parkinson's Disease Clinic and Movement Disorders Program, Department of Neurology, The Cleveland Clinic Florida and
  • 2Department of Radiology, Holy Cross Hospital, Fort Lauderdale, Florida
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Publication History

Publication Date:
31 December 2001 (online)

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ABSTRACT

Hemifacial spasm (HFS) has been defined as consisting of brief clonic jerking movements of the facial musculature, beginning in the orbicularis oculi with downward spreading to other facial muscles. HFS, perhaps the most common of the abnormal involuntary facial movements, has been classically ascribed to vascular loop compression at the root exit zone of the facial nerve. Causes other than such vascular loops are rare in the medical literature. Here we present three case studies in which the phenomenology of the HFS was atypical in onset and evolution. Using these three patients as introduction to the topic, we reviewed the literature of all cases of HFS with causes other than the vascular loop. In these three cases, HFS was caused by (1) a parotid gland tumor, (2) a cerebellopontine angle meningioma, and (3) an acoustic schwannoma. We also discuss the radiological findings as well as possible differences in the genesis of HFS and phenomenology in such cases and present recommendations on how to evaluate these patients.

KEYWORD

Hemifacial spasm - facial dyskinesias - psychogenic movement disorders - tumors

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