原发性软骨肉瘤多发生于四肢长骨的干扰端，发生于鼻窦少见。我院遇到1例，经病理证实，现报告如下。l病例介绍患者女性，16岁。以右侧耳塞，牙痛，面部麻木2月．加重伴视物模糊1月干96年12月9日入院。体检：右侧眼球外突，面颊隆起，感觉减退。鼻腔粘膜充血，下鼻甲肥大，鼻腔 Primary chondrosarcoma occurs mostly in the long bones of the extremities, occurs in the sinus rare. I met a hospital, confirmed by pathology, are as follows. l Case Description Female patients, 16 years old. To the right earplugs, toothache, facial numbness in February. Aggravated with blurred vision January January 96, December 9 admission. Physical examination: the right eye protrusion, cheek bulge, feeling diminished. Nasal mucosal congestion, turbinate hypertrophy, nasal cavity