滑膜软骨瘤病(Synovial chondromato-sis)是一种少见的良性滑膜疾患。其特点为滑膜内层结缔组织增生并化生为多数软骨样结节。本病较多发生于膝、肘等大关节而罕见于颞下颌关节。国内尚无有关本症的报道。最近,我们在临床上发现一例,现报告如下: Synovial chondromato-sis is a rare benign synovial disorder. It is characterized by synovial hyperplasia of connective tissue and metaplasia of the majority of cartilage-like nodules. The disease occurred in the knee, elbow and other large joints and rare in the temporomandibular joint. There is no domestic report of this disease. Recently, we found a clinical case, the report is as follows: