Post-irradiation neuromyotonia affecting trigeminal nerve distribution: an unusual presentation.
We describe two patients who developed neuromyotonia of the floor of the mouth after irradiation of a motor branch (V3) of the trigeminal nerve. The neuromyotonia manifested as sustained muscle contraction due to peripheral nerve dysfunction. The neuromyotonia in both patients was controlled with carbamazepine. Radiation-exposed nerves can become symptomatic months or years after completion of radiation therapy.
Diaz
J M
JM
Neurology Service, William Beaumont Army Medical Center, Fort Bliss, TX 79920.
Urban
E S
ES
Schiffman
J S
JS
Peterson
A C
AC
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D009468:Neuromuscular Diseases / Q000209:etiology* / Q000503:physiopathology; D011832:Radiation Injuries / Q000503:physiopathology*; D013997:Time Factors; D014276:Trigeminal Nerve / Q000503:physiopathology / Q000528:radiation effects*