迷走神経と肋間神経由来の胸腔内神経鞘腫症の1例

Coexistence of Schwannomatosis from Vagal Nerve and Intercostal Nerve；Report of a Case

はじめに　神経原性腫瘍は通常孤立性で交感神経や肋間神経由来であることが多く，胸腔内迷走神経由来の腫瘍はまれである．われわれは左胸腔内迷走神経と肋間神経由来の神経鞘腫が同時に発見された1例を経験したので報告する．

Schwannomatosis with mediastinal vagal schwannoma is rare. A 71-year-old man presented with multiple mediastinal tumors by a regular check-up. A chest computed tomography showed well-defined round tumors along with the 3rd intercostal nerve and in the left upper mediastinal area. A percutaneous biopsy specimen of the tumor suggested benign tumor, however surgical excision was performed for a definitive diagnosis and treatment. The histological diagnosis was schwannoma. Since the tumor originated from the mediastinal vagal nerve proximal to the recurrent laryngeal nerve and was suggested to be benign, it was not resected to preserve the function of the recurrent laryngeal nerve.