Three Cases of Brachial Plexus Schwannoma

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We report three cases of brachial plexus schwannoma. Subjects were a 28-year-old man with upper-limb pain in right lateral neck palpation, a 62-year-old woman with right supraclavicular fossa mass, and a 37-year-old man with left lateral neck mass. Magnetic resonance imaging (MRI) showed all three to have neurogenic tumors, originating in the brachial plexus, subsequently resected intracapsularly under general anesthesia. Histopathological examination showed tumors in one case to be mixed Antoni A and B schwannoma and in two to be Antoni A. Postoperatively all three developed paresthesia or sensory deficit and two upper-limb motor weakness that improved within 1 month. The Semmes-Weinstein monofilament test was useful in evaluating the preoperative and postoperative upper-limb sensory deficit. The postoperative period remains complication-free as of this writing.br