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结合2例颞下颌关节滑膜软骨瘤病的临床表现,X线、CT和MRI特征,以及术中所见,分析发生于颞下颌关节的滑膜软骨瘤病的临床特点、诊断及治疗方法。2例患者术前均有关节区疼痛、肿胀,无开口受限。X线片见颞下颌关节间隙增宽,其中1例CT显示颞下窝关节面骨质破坏并硬化,MRI可见关节腔内多发小结节状影。术后未出现咬合紊乱及开口受限。颞下颌关节滑膜软骨瘤病少见,临床表现无特异性,好发于关节上腔,钙化性游离体是其影像学特征,组织病理学常见软骨结构样小体,伴周围组织慢性炎症及纤维增生,一般需手术治疗。
Combined with the clinical manifestations, X-ray, CT and MRI features of 2 cases of temporomandibular joint synovial chondromatosis and the intraoperative findings, we analyzed the clinical features, diagnosis and treatment of synovial chondromatosis in temporomandibular joint. Two patients had joint pain, swelling and no opening restriction before surgery. X-ray film showed widened temporomandibular joint space. One case of CT showed bone destruction and sclerosis of the articular surface of the infratemporal fossa. MRI showed multiple nodules in the joint cavity. No postoperative occlusion disorders and limited opening. Temporomandibular joint synovial chondromatosis is rare, clinical manifestations of non-specific, occur in the superior cavity of the joint, calcification of the free body is its imaging features, histopathology common cartilage-like bodies, with peripheral tissue chronic inflammation and fiber Hyperplasia, generally require surgery.