Post-Irradiation Facial Neuromyotonia/Myokymia: A Hemifacial Spasm Mimic | Zendy

Bart Swinnen | Zendy; Johannes H.T.M. Koelman | Zendy; AnneFleur van Rootselaar | Zendy

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Post-Irradiation Facial Neuromyotonia/Myokymia: A Hemifacial Spasm Mimic

Author(s) -

Bart Swinnen,

Johannes H.T.M. Koelman,

AnneFleur van Rootselaar

Publication year - 2021

Publication title -

tremor and other hyperkinetic movements

Language(s) - English

Resource type - Journals

ISSN - 2160-8288

DOI - 10.5334/tohm.653

Subject(s) - myokymia , hemifacial spasm , neuromyotonia , facial muscles , medicine , facial nerve , anesthesia , anatomy , physical medicine and rehabilitation , electromyography , antibody , immunology

Background: Hemifacial spasm is diagnosed on a clinical base, with certain atypical features alerting the physician for mimics. Phenomenology shown: Hemifacial neuromyotonia/myokymia characterized by tonic hemifacial contraction followed by multifocal undulating hemifacial twitches. Educational value: These features are a red flag for (post-irradiation) facial neuromyotonia/myokymia which generally responds well to low dose carbamazepine.

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