临床资料：患者男，２３岁。２年前无明显诱因始感右肘关节隐痛，疼痛时发时愈，时轻时重，不伴畏寒发烧和潮热盗汗。右臂伸出活动功能较对侧稍差。近日在外院拍片检查，诊断为关节软骨瘤病，于１９９８年３月９日入院。入院时检查，右肘关节前内侧丰满，可扪及滑动的硬节... Clinical data: The patient was male, 23 years old. Two years ago, there was no obvious incentive to feel pain in the right elbow joint. When the pain occurred, the symptoms were light and heavy, and there was no chills and fever and night sweats. The outstretched right arm function is slightly worse than the opposite side. Recently, he was examined in an external hospital and diagnosed with osteochondroma disease. He was admitted to hospital on March 9, 1998. Checked on admission, the front elbow of the right elbow full, can slide and hard section ...