Open AccessPost-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.