台耳醫誌

Schwannoma is a benign, slow-growing tumor originating from nerve-supportingcell. Approximately 25-40% of schwannomas develop in the head and neck region.However, only about 4% occur in the sinonasal tract. This study presents a rare case of nasal schwannoma along with a review of the relevant literature. We discuss a 54-year-old woman with no underlying diseases who presented with left-sided nasal obstruction and recurrent epistaxis for 2 months without nasal discharge, hyposmia/anosmia, or headache. Sinus computed tomography imaging showed a mass in the nasal cavity attached to the left inferior turbinate and nasal endoscopy revealed a protruding mass in left nasal cavity. Endoscopic-assisted wide excision and partial turbinectomy were performed under local anesthesia, with no recurrence noted 6 months postoperatively. Endoscopic-assisted surgery is a viable option for selected patients due to cosmetic considerations. Given its rarity and the difficulty of diagnosis based solely on physical examination and imaging, we present this case and describe the most relevant epidemiological and clinical characteristics of nasal schwannoma. (J Taiwan Otolaryngol Head Neck Surg 2025; 59:196-200)
許旺氏細胞瘤是一種良性且生長緩慢的腫瘤，來源於神經支持細胞。頭頸部區域約佔許旺氏細胞瘤生長的25%–40%。然而，只有約4%的許旺氏細胞瘤發生在鼻與鼻竇之區域。本研究旨在呈 現1例罕見的鼻部許旺氏細胞瘤病例並進行文獻回顧。本文提出1例54歲女性，無任何慢性疾病病史，主訴左側鼻塞和反覆間歇性流鼻血持續2個月，無明顯鼻蓄膿及鼻涕症狀、嗅覺減退/喪失 及頭痛症狀。電腦斷層檢查中，發現左側鼻部腫瘤與下鼻甲相連，無法分辨明確界限。在鼻竇內視鏡檢查中，腫瘤游離於下鼻甲但無法完全分離。因鼻部腫瘤，進行內視鏡鼻內腫瘤切除術 及部分下鼻甲切除術，病患於術後6個月未見復發。因病例罕見併且依理學檢查和影像學診斷困難，故提出此病例討論。（台耳醫誌　2025; 59:196-200）