"EMG disease" with bulbar muscle involvement: a case report.

Chow, David W; Slipman, Curtis W; Ellen, Mark; Lenrow, David · Arch Phys Med Rehabil · 2002

case_report · Level V

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Abstract

We report the first case of diffuse abnormal insertional activity with bulbar muscle involvement. Electromyography performed 5 months earlier reported multilevel radiculopathy. A repeat electromyography study revealed short trains of positive waves without fibrillation potentials, diffusely present in all tested muscles. Positive waves were also found in the bulbar innervated muscles; these included the trapezius, frontalis, and the orbicularis oculi. This entity is important to recognize because confusion with neuromuscular syndromes can occur.

Medical subject headings

Anatomy