頸部迷走神経由来の巨大な神経鞘腫の一例

概要

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A 70-year-old male was referred to us because of a constant sensation of a foreign body in the throat. He had undergone a tonsillectomy in another hospital. CT scan and MRI showed a giant and somewhat homogeneous soft tissue mass with fixation to the right sternocleidomastoid muscle. The tumor was removed together with the vagus nerve, and the fresh specimen measured 150 × 50 × 30 mm and 80 g. A diagnosis of schwannoma derived from the vagus nerve was made on the basis of anatomic location of this huge tumor and pathological study. His constant sensation in the throat had completely disappeared postoperatively and no symptom was observed except for the persistent hoarseness. Six months later following the tumor extirpation, the patient underwent vocal fold augmentation by intracordal injection of atelocollagen, and his phonatory function improved.
耳鼻咽喉科臨床学会の論文