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. 2021 Sep 20:11:36.
doi: 10.5334/tohm.653. eCollection 2021.

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

Bart E K S Swinnen  1 , J H T M Koelman  1 , A F van Rootselaar  1
Affiliations

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

Bart E K S Swinnen et al. Tremor Other Hyperkinet Mov (N Y). .

Abstract

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.

Keywords: carbamazepine; hemifacial spasm; irradiation; myokymia; neuromyotonia.

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Conflict of interest statement

The authors have no competing interests to declare.

References

    1. Yaltho, TC, Jankovic, J. The many faces of hemifacial spasm: Differential diagnosis of unilateral facial spasms. Mov. Disord. 2011; 26: 1582–1592. DOI: 10.1002/mds.23692 - DOI - PubMed
    1. Sringean, J, Dressler, D, Bhidayasiri, R. More than hemifacial spasm? A case of unilateral facial spasms with systematic review of red flags. J. Neurol. Sci. 2019; 407. DOI: 10.1016/j.jns.2019.116532 - DOI - PubMed
    1. Gutmann, L, Gutmann, L. Myokymia and neuromyotonia 2004. J. Neurol. 2004; 251: 138–142. DOI: 10.1007/s00415-004-0331-5 - DOI - PubMed

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