１　病例介绍患者，男，３８岁。左眶上肿块３年。３年前患者无意中发现左眶上部出现小隆起，触之坚硬。近２年眶部隆起速度加快。２０ｄ前出现疼痛，逐渐加重并发展为持续性，伴有恶心、呕吐，视为改变不明显，无昏迷及抽搐。全身查体无明显异常，专科及局部检查：嗅觉缺如， 1 case presentation patient, male, 38 years old. The left eyelid was lumped for 3 years. Three years ago, the patient inadvertently found a small bulge in the upper part of the left iliac crest. In the past two years, the speed of the axillary uplift has accelerated. Pain before 20 days, gradually aggravated and developed into persistent, accompanied by nausea and vomiting, as the change was not obvious, no coma and convulsions. There was no apparent abnormality in the whole body examination, specialist and partial examination: lack of smell,