Isolated accessory nerve palsy.
Accessory nerve palsy is either idiopathic or secondary to local trauma, infection, or tumor. The discomfort and disability produced as a result of trapezius weakness may be significant. The clinical features and management of accessory nerve palsy have been discussed.
D000055:Accessory Nerve; D000328:Adult; D006801:Humans; D008297:Male; D010243:Paralysis / Q000209:etiology*; D010523:Peripheral Nervous System Diseases / Q000209:etiology