患者男 ,17岁 ,主诉左鼻腔阻塞半年。患者半年前无明显诱因出现左侧鼻腔反复出血 ,出血量从数滴至 5 0ｍｌ不等 ,左侧鼻腔有阻塞感并进行性加重。以鼻腔鼻窦肿瘤性质待查收入院。体检心肺未见异常。专科检查示外鼻左侧略膨隆 ,左侧鼻腔见有表面欠光滑、色灰白的肿物生长 ,堵塞 Male patient, 17 years old, complained of left nasal obstruction for six months. Six months ago there was no obvious incentive to patients with repeated episodes of left nasal bleeding. The amount of bleeding varied from a few drops to 50 ml. The left nasal cavity had a sense of obstruction and worsening. To nasal sinus tumor nature to be admitted to hospital. Physical examination heart and lung no abnormalities. Specialist examination showed a slight bulging left outside the nose, the left nasal see less smooth surface, gray-colored tumor growth, clogging