患者,女,41岁。因发现右前臂肿块已2月,于1990年4月17日入院。检查:右肘下5cm 桡侧可触及一约2×1.5×1.5cm 肿块,质中等,可左右活动。右上肢X 线片示无异常。择划手术,术中见肱桡肌内深达伸腱表面有-1.5×1×1 cm 椭圆形白色肿块,包膜完整。切除后伤口一期愈合。大体标本观察:包块呈椭圆形,色白,完整包膜。切开,见内容物为白色胶状似蛋清液体状。病理检查:瘤细胞呈梭形,星 Patient, female, 41 years old. The right forearm mass was found in February and was admitted to hospital on April 17, 1990. Check: A 5 cm below the right elbow can touch a mass of about 2 x 1.5 x 1.5 cm. The mass is medium and can be left or right. The right upper limb X-ray showed no abnormalities. The operation was performed with surgery. During the operation, there were -1.5 × 1 × 1 cm oval white lumps on the surface of the iliac muscle. After the resection, the wound healed once. Gross specimen observation: The mass was oval, white, and complete. Cut, see the contents of white gelatinous egg-like liquid. Pathological examination: Tumor cells are spindle-shaped