患者女性,41岁。1990年9月因头部肿块3个月就诊。3个月前无意中发现头部有一蚕豆大小肿块,无红肿及疼痛。增大较快。体检:头部左耳上方3cm处有2.5×2.5cm大小肿块,边界清,活动度好,与皮肤无粘连,毛发生长良好。拟诊头皮纤维瘤在局麻下行肿瘤切除术。术中发现肿块位于皮下,无明显包膜,肿块质脆,鱼肉样,肿块与皮肤无粘连。切口一期愈合。病理诊断为头皮纤维组 Female patient, 41 years old. September 1990 due to a 3 month head lumps. Unexpectedly, 3 months ago, there was a large size bump on the head with no swelling or pain. Increase faster. Physical examination: There was a 2.5 x 2.5 cm mass at the top of the head’s left ear, with clear borders, good mobility, no adhesion to the skin, and good hair growth. The diagnosis of scalp fibroma is to be performed under local anesthesia for tumor resection. The tumor was found subcutaneously during the operation, and there was no obvious capsule. The mass was brittle, fish-like, and the mass had no adhesion to the skin. The incision healed one time. Pathological diagnosis of scalp fibers