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Hemimasticatory Spasm: Report of a Case and Review of the Literature

Christie, Corina; Rodríguez-Quiroga, Sergio Alejandro; Arakaki, Tomoko; Rey, Roberto Daniel; Garretto, Nélida Susana

Background: Hemimasticatory Spasm is a very rare disorder.

Case report: A 62-year-old woman consulted with 30 years of unusual involuntary twitches in preauricular region and spasms that hamper jaw opening. During the spasms she cannot open her mouth for several seconds. At physical examination we observed hypertrophy of the masseter and temporalis muscles, shared features with Hemimasticatory Spasm. She was treated with botulinum toxin type A with excellent response.

Discussion: Hemimasticatory Spasm is a rare movement disorder, but given the excellent response to botulinum toxin type A treatment, it should be considered in the spectrum of facial spasms.



Also Published In

Tremor and Other Hyperkinetic Movements

More About This Work

Academic Units
Center for Parkinson's Disease and Other Movement Disorders
Published Here
November 2, 2014