"EMG disease" with bulbar muscle involvement: a case report.
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.
Chow
David W
DW
Penn Spine Center, Department of Rehabilitation Medicine, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA.
Slipman
Curtis W
CW
Ellen
Mark
M
Lenrow
David
D
D000328:Adult; D001132:Arm / Q000294:innervation*; D002574:Cervical Vertebrae; D003937:Diagnosis, Differential; D004576:Electromyography; D005260:Female; D006801:Humans; D006987:Hypesthesia / Q000503:physiopathology / Q000534:rehabilitation*; D007405:Intervertebral Disc Displacement / Q000503:physiopathology / Q000534:rehabilitation; D008526:Medulla Oblongata / Q000503:physiopathology; D009046:Motor Neurons / Q000502:physiology; D018482:Muscle, Skeletal / Q000294:innervation; D011128:Polyradiculopathy / Q000503:physiopathology / Q000534:rehabilitation*; D013128:Spinal Osteophytosis / Q000503:physiopathology / Q000534:rehabilitation; D013130:Spinal Stenosis / Q000503:physiopathology / Q000534:rehabilitation