滑膜骨软骨瘤病为一种很少见的良性病变,特征为关节滑膜形成多数软骨或骨结节,一部分结节可脱离滑膜,进入关节囊内成为游离小体。受累的关节常有多年疼痛、强直、肿胀、活动受限,有些病人滑膜 Synovial osteochondromatosis is a rare benign lesion characterized by the formation of a majority of cartilage or bone nodules in the synovium, and part of the nodules can escape from the synovium and enter the joint capsule as free bodies. Affected joints often have pain, stiffness, swelling, limited mobility for years, and some patients have synovial membranes.