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例1:男性,52岁。右膝关节间断性肿胀疼痛、行动不便3年。近2月来活动时疼痛加重,并有响声,时有交锁现象。X线检查示膝关节内侧间隙增宽,股骨内髁关节面下前方有不规则团状及孤立颗粒状钙化影。1993年5月24日手术见膝关节少量积液,淡黄色;滑膜增厚水肿,表面有红色纤细绒毛;股骨内髁关节软骨附着一乳白色的肿块,其基底内侧与滑膜相连;冲洗后取出光滑椭圆形白色透明软骨小体6颗,最大2cm×1.5cm×l.5cm,最小0.3cm×0.3cm×0.2cm。将病变滑膜全部切除,见股骨髁及胫骨平台软骨面完整。病理
Example 1: Male, 52 years old. Disordered swelling and pain in the right knee and inability to move for 3 years. During the recent February activity, the pain increased and there was a loud noise. X-ray examination revealed that the medial gap of the knee joint was widened, and there were irregular lumps and isolated granular calcifications under the anterior surface of the femoral condyle. On May 24, 1993, the operation showed a slight effusion of the knee joint, pale yellow; synovial thickening and edema, with red slender hairs on the surface; a milky white mass attached to the cartilage of the femoral condylar articular cartilage; the basement of the knee was connected to the synovial membrane; Remove the smooth oval white transparent cartilage body 6, maximum 2cm × 1.5cm × l.5cm, the minimum 0.3cm × 0.3cm × 0.2cm. All the lesions were resected and the cartilage surface of the femoral condyle and tibial plateau was intact. pathology