滑膜骨软骨瘤病中游离体表现与诊断关系

Synovial Chondromatosis: Diagnosis and Appearance of Loose Bodies

目的 分析滑膜骨软骨瘤病中游离体X线、CT表现 ,讨论游离体发生发展与诊断本病关系。材料与方法 回顾分析 2 3例关节内、外游离体的X线与CT表现 ,并与病理对照。 2 3例摄X线平片 ,其中 13例CT扫描 ,有 6例作高分辨率CT扫描。 2 2例手术病理证实 ,另 1例关节镜检查病理证实。结果 关节内、外游离体钙化程度和形态大小与游离体形成时间有关 ,也与病程有关。往往病程长 ,关节内、外游离体数目多 ,钙化与骨化明显 ,且偏大并累及范围广。反之 ,病程短游离体数目少 ,体积小、钙化轻。游离体钙化程度也反映本病严重程度 ,同时对X线、CT诊断尤为重要。结论 诊断本病一个重要环节是观察游离体表现 ,钙化程度对X线、CT诊断意义明显 ,注意与相似疾病鉴别 ,诊断并非困难。

Objective To analyze the manifestations of synovial chondromatosis (SC) on plain films and CT scans, to discuss the development of loose bodies and its relationship with the diagnosis of SC.Materials and Methods Plain film was performed in 23 pathologically proved SC cases, of which 13 cases underwent CT scanning (HRCT in 6 cases). The imaging features of intra and extra joint loose bodies were analyzed and compared with the pathological findings.Results The size and the calcification degree of loose bodies was closely related to the time of their formation and the course of SC. Usually, the more and bigger the loose bodies were and the longer the disease was present, the more obvious the calcification or ossification would be, and vise versa.Conclusion The appearances, especially calcification degree, of loose bodies in SC on plain films and CT scans are very important signs for the diagnosis of SC.