鼻内镜下切除累及额窦及其引流通道的内翻性乳头状瘤

目的鼻腔鼻窦内翻性乳头状瘤是头颈部常见的良性肿瘤之一，但累及额窦及其引流通道的内翻性乳头状瘤既往报告不多。本研究采用经鼻内镜手术治疗累及额窦及其引流通道的内翻性乳头状瘤，探讨相应术式的适应证及疗效。方法累及额窦及其引流通道的乳头状瘤患者9例（男8例，女1例），年龄23～70岁，中位年龄52岁。所有患者术前均接受CT检查，5例行MRI检查，组织病理学诊断均为内翻性乳头状瘤。根据病变范围进行分期，然后进行经鼻内镜手术治疗并观察疗效。结果根据Krouse分期系统，所有患者病变均为13期，经鼻内镜手术顺利切除肿瘤，其中肿瘤的根基部位于额隐窝外侧壁者4例，采用DrafⅡA型手术；肿瘤根基部位于额隐窝和额漏斗内侧壁和后壁，以及外侧壁和后壁者3例，采用DrafⅡB型手术；he瘤根基部位于额隐窝和额漏斗后壁，或者内侧壁和后壁，且肿瘤累及双侧额窦者2例，采用DrafⅢ型手术。所有患者均在鼻内镜下随访，其中3例术后复查CT，随访5～34个月，中位随访时间16个月。术后组织病理学检查结果均符合术前诊断，未发现局部恶变。结论术前CT和病理检查对明确病变部位和性质至关重要，MRI检查可起到良好的辅助作用。经鼻内镜手术去除累及额窦及其引流通道的T3期乳头状瘤，可取得良好的近期疗效。

Endoscopic management of the inverted papilloma involving frontal sinus and its drainage pathway

OBJECTIVE: The endoscopic management of inverted papilloma has gained increasing popularity over the last 15 years. However, the appropriate management of lesions involving the frontal sinus and its drainage pathway still has to be determined. METHODS: We performed a retrospective review of the results of the patients with inverted papilloma in the Otolaryngology Head and Neck Surgery department, Beijing Tongren Hospital from 2004 to 2007 to identify the patients with lesions involving frontal sinus and its drainage pathway. By its appearance on nasal endoscopic examination and CT scanning, the tumors were defined using Krouse staging system. Sinus endoscopy was used to screen for disease after endoscopic resection. And their clinical outcomes were analyzed. RESULTS: A total of nine patients (8 males and one female) with inverted papilloma who had frontal sinus and its drainage pathway involvement were identified. All tumors were defined as T3 lesions. Preoperative and postoperative pathologic examinations revealed inverted papilloma as the diagnosis. Four cases with lateral wall of frontal recess attachment underwent endoscopic Draf II A frontal sinusotomy. Three cases with either lateral and posterior walls of frontal recess and frontal infundibulum attachment or medial and posterior walls of frontal recess and frontal infundibulum attachment underwent Draf II B procedure. Two cases with either posterior wall of frontal recess and frontal infundibulum attachment or medial, lateral and posterior walls of frontal recess and frontal infundibulum attachment underwent Draf III procedure. All patients remain disease free with an average follow-up of 13 months. CONCLUSIONS: Extensive inverted papilloma (Krouse T3 lesions) can be treated successfully with an endoscopic approach.