患者,男,56岁。因右小腿外侧隐痛并轻度肿胀3周,于1980年7月16日入院。无发热或局部外伤史。患者曾因反复血尿于1973年诊断为“肾癌”作左肾切除术,病理报告为“肾透明细胞癌”,术后化疗6个月(环磷酰胺12g)。入院查体除右小腿局部轻度肿胀并压痛外,无其它特殊。化验检查无异常。右小腿X线片示右腓骨中段骨干2×1.2cm密度减低区,边缘不 Patient, male, 56 years old. He was admitted to hospital on July 16, 1980 due to mild pain on the outside of the right leg and mild swelling for 3 weeks. No history of fever or local trauma. The patient had been diagnosed as “renal cancer” for left kidney resection in 1973 with repeated hematuria. The pathology report was “transplant clear cell carcinoma of the kidney” and postoperative chemotherapy for 6 months (cyclophosphamide 12g). In addition to the slight swelling of the right calf and tenderness, there was no other special examination. There are no abnormalities in laboratory tests. The right leg X-ray film shows the 2nd 1.2cm density reduction area in the middle of the right humerus, the edge is not