局限性骨化性肌炎的X线、CT表现  

X-ray and CT Findings of Myositis Ossificans Circumscripta

作　　者：王亮[1] 

机构地区：[1]沈阳医学院附属中心医院放射科,辽宁沈阳110024

出　　处：《中国医药指南》2013年第29期320-320,433,共2页Guide of China Medicine

摘　　要：目的了解局限性骨化性肌炎的X线平片和CT影像学表现。方法回顾性分析15例经手术、病理或随访证实为骨化性肌炎患者的影像学资料。结果 15例骨化性肌炎中,发生于肩关节2例、肘关节2例、髋关节7例、胫腓骨近段1例、股骨远段2例、足跖骨周围1例,所有病例均为单发。影像学分为3期,在不同时间,X线和CT表现各有异同。急性水肿期(早期)3例,X线表现为软组织内条片状或分层状骨化影,CT表现周围软组织内片状钙化,边界不清。增殖肿块期(中期)9例:X线表现为软组织内骨性致密影,CT表现为分层状"蛋壳"样骨化。骨化修复期(晚期)3例,X线表现为周围软组织内致密影,周围软组织被推压移位,CT表现为周围软组织内大团状高度致密影,与局部骨皮质分界不清。CT增强扫描示肿胀软组织无强化,无软组织肿块。结论 X线平片和CT影像学表现有一定特点。如缺乏特征性表现,难与骨恶性肿瘤鉴别时,可做MRI检查,提高诊断的准确率。Objective To study understand the limitations of myositis ossificans X-ray and CT imaging. Methods We retrospectively analysis of 15 cases by surgery, pathology or follow-up in patients with confirmed myositis ossificans imaging data. Result 15 cases of myositis ossificans in two cases occurred in the shoulder, elbow two cases, hip seven cases, one case of proximal tibia, femur distal two cases, one case of foot metatarsal around, all cases are single hair. Image credits is 3, at different times, X-ray and CT manifestations have similarities. Conclusion X-ray and CT imaging has certain characteristics. Such as lack of characteristic features, it is difficult to identify with bone cancer when do MRI, to improve diagnostic accuracy.

关 键 词：骨化性肌炎 X线 CT 诊断 

分 类 号：R445[医药卫生—影像医学与核医学]