Tongue myokymia presenting twelve years after radiation therapy

•Radiation therapy may damage the hypoglossal nerve causing axonal hyperexcitability and myokymia of the tongue.•Delayed effects of radiation therapy might be seen decades later.•Detecting myokymic discharges is significative in differential diagnosis. This case is a patient with tongue myokymia fol...

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Bibliographic Details
Published in:Clinical neurophysiology practice 2016-01, Vol.1, p.41-42
Main Authors: Tiftikcioglu, Bedile Irem, Bulbul, Ismail, Ozcelik, Metin Murat, Piskin-Demir, Gonul, Zorlu, Yasar
Format: Article
Language:English
Subjects:
Clinical and
Long-term effects
Radiation therapy
Tongue myokymia
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Summary:•Radiation therapy may damage the hypoglossal nerve causing axonal hyperexcitability and myokymia of the tongue.•Delayed effects of radiation therapy might be seen decades later.•Detecting myokymic discharges is significative in differential diagnosis. This case is a patient with tongue myokymia following radiation therapy 12years earlier, documented using video and EMG. A 68-year-old woman with a history of nasopharyngeal carcinoma presented with subacute onset of difficulty in speaking and involuntary movements of her tongue approximately 12years after radiation therapy to head and neck. Electromyography displayed myokymic discharges. There was no evidence of recurrent malignancy. Delayed effects of radiation therapy might be seen decades later. Myokymic discharges may reveal radiation-induced neuropathy.
ISSN:2467-981X
2467-981X
DOI:10.1016/j.cnp.2016.05.002