滑膜软骨瘤病是一种关节骨膜自限性增殖性的良性疾病,由滑膜内层结缔组织增生并化生成多数软骨结节,钙化、骨化而脱离滑膜,进入关节腔,形成大量游离小体。该病好发年龄为30~50岁,男性多于女性,绝大多数发生在单关节[1]。患者,男,34岁,右髋疼痛,活动受限渐进性加重2年入院,2年前患者无明显诱因感觉右髋疼痛,活动时加重,休息后减轻,其后疼痛逐渐加重。拍片提示:右股骨头坏死,患者既往有饮酒史10年,约50 g/天,吸烟史 Synovial chondromatosis is a benign disease of articular periosteal self-limiting proliferative. The synovial hyperplasia and formation of the majority of cartilage nodules, calcification, ossification and detached from the synovium, into the joint cavity, forming a large number of Free body. The incidence of the disease is 30 to 50 years old, more men than women, the vast majority occurred in the single joint [1]. Patient, male, 34 years old, right hip pain, limited mobility Incremental 2 years admitted, 2 years before the patient had no obvious incentive to feel pain in the right hip, increased activity, reduced after the rest, and then gradually increased pain. Film Tip: Right femoral head necrosis, patients with previous history of drinking 10 years, about 50 g / day, smoking history