软骨肉瘤好发于四肢的长骨、骨盆和肋骨。发生于鼻腔及鼻窦者少见。我科自 1 991年至今共收治 4例 ,报道如下。1　病例报告例 1 :男 ,30岁。因头痛 1年 ,发现口咽部肿块 3个月入院。检查 :咽后壁 2 cm× 3cm肿块 ,质硬、光滑 ,向上延至鼻咽部。 CT示 :鼻咽口咽部低密度软组织肿 Chondrosarcomas occur in the long bones, pelvis and ribs of the extremities. Occurred in the nose and sinus are rare. Our department since1991 has received a total of 4 cases, reported as follows. 1 Case Report Example 1: Male, 30 years old. Due to a headache for 1 year, found 3 months oropharyngeal mass hospitalization. Check: pharyngeal wall 2 cm × 3cm mass, hard, smooth, up to the nasopharynx. CT shows: nasopharyngeal low density soft tissue swollen