发生于中胚叶滑膜组织的肿瘤称为滑膜瘤.1865年Langenbeck等曾有描述,但直至1928年Wegelin氏才比较正确地使用了滑膜瘤这一名称. 本病起源于关节囊、滑液囊和腱鞘。一般在关节附近发生较多;但也可发生在远离关节地区;有时也可发生在无滑膜组织的部位,如发生在直肠鞘和Hunter′s管。但常见的发生部位是 The tumors that occur in the synovial tissue of the mesodermal tissue are called synovial tumors. Langenbeck et al. described it in 1865, but it was not until 1928 that Wegelin used the name synovial tumor more correctly. The disease originated from the joint capsule, Synovial vesicles and tendon sheaths. Generally occurs in the vicinity of the joint more; but it can also occur in areas away from the joint; sometimes it can occur in the absence of synovial tissue, such as occurs in the rectal sheath and Hunter’s tube. But the common site of occurrence is