頸部迷走神経鞘腫の診断と被膜下摘出の意義

A Case of Neurilemmoma of the Cervical Vagal Nerve

I．はじめに

　頸部迷走神経に由来する神経鞘腫は比較的稀な疾患とされている。本症の治療は外科的摘出が唯一の方法であるが，過去の報告を通覧すると手術法の如何によらず術後に永久的反回神経麻痺が生じている。最近著者らは同腫瘍の被膜下摘出を行い永久的な反回神経麻痺を残さずに治療しえた1例を経験した。症例を紹介し迷走神経鞘腫の診断におけるCTの有用性と被膜下摘出術の意義について報告する。

　A case of neurilemmoma of the cervical vagal nerve in a 34-year-old male who complained of a cervical mass in the right side with no other symptoms was reported.

　Surgical exploration revealed a tumor originating from the sheath of the vagal nerve. The intracapsular removal of the tumor was attempted to preserve the function of the vagal nerve. Recurrent nerve palsy was completely recovered in two months postoperatively

　We emphasized that the value of intracapsular total removal of the vagal neurilemmoma for preservation of the vocal and swallowing function.