我院自1985～1995年收治膝关节肿瘤及瘤样病变15例，在同期的膝关节手术中高于化脓性膝关节炎手术数而居第二位。现报告如下。临床资料一般资料：本组15例，男7例，女8例。年龄2～13岁。其中色素沉着绒毛纺节滑膜炎4例，滑膜软骨瘤4例，髓生骨软骨瘤1例，骸骨嗜酸性肉芽肿2例， In our hospital from 1985 to 1995, 15 cases of knee tumors and tumor-like lesions were treated, which was the second highest in the knee surgery in the same period than the number of suppurative knee arthroplasty. The report is as follows. Clinical data General information: The group of 15 patients, 7 males and 8 females. Age 2 to 13 years old. Among them, 4 cases were pigmented villous synovitis, 4 cases were synovial chondromatosis, 1 case was medullary osteochondroma, 2 were eosinophilic granuloma of the bones,