診断に苦慮した舌の神経鞘腫症例

A case of tongue schwannoma with diagnostic challenges

はじめに

　神経鞘腫は舌に発生する良性腫瘍の鑑別に挙がるものの，その頻度は低い。舌神経鞘腫は術前診断に苦慮することの多い疾患であり，術前に診断が確定せず，由来神経が不明であったという報告が多数ある^1〜4）。今回，頸部外切開にて摘出した舌の神経鞘腫の1例を経験したため，文献的考察を交えて報告する。

　Tongue schwannomas are rare, benign tumors. In this case report, we described a 42-year-old woman with an approximately 3-cm sublingual mass that was initially misdiagnosed as a hemangioma and observed for years. The tumor had enlarged and caused pain, prompting surgical resection. Histopathological examination confirmed the diagnosis of a schwannoma. Although the patient had a history of vestibular schwannoma, suggestive of possible schwannomatosis, genetic testing was not performed at the patient's discretion. The postoperative recovery was uneventful, with no neurological deficits.