Background : primary malignant melanoma of the nose and paranasal sinus is a rare disease with poor prognosis 摘要背景：原发于鼻腔及副鼻窦之黏膜恶性黑色素瘤是一极为少见且预后不好的疾病。
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Objective : to investigate the therapeutic efficacy of endoscopic surgery in the removal of inverted papilloma of the nasal cavity and paranasal sinuses 摘要目的：探讨经鼻内窥镜行鼻腔鼻窦内翻性乳头状瘤切除术的治疗效果。
