目的 探讨背部弹力纤维瘤的临 床表现及CT、MRI等影像检查方法对其的 诊断价值。方法 回顾性分析4例背部弹 力纤维瘤患者的CT、MRI表现及特点，其 中女3例，男1例，均经过手术，由病理证 实。结果 6处实性肿物位于单侧或双侧肩 胛下区，质地柔软。CT和MRI显示肿物均 位于前锯肌及背阔肌深面，呈椭圆形；与 周围肌肉分界清晰，与后胸壁分界不清。 MRI示肿物信号不均匀，可见纤维组织信 号及脂肪信号交替排列。结论 背部弹力 纤维瘤有其特征性的临床与影像学表现， CT和MRI能明确肿瘤范围及其与周围组织 结构关系，特别是MRI，是诊断背部弹力 纤维瘤的有效方法。

 Objective To discuss the clinical and imaging manifestations of the elastofibroma dorsi. Methods Analyzing 4 cases of elastofibroma dorsi which were confirmed by surgery and pathology. Results The solid masses were all located at unilateral or bilateral scapular angle area, the texture was soft. CT and MRI showed the tumors located in the deep subscapular muscle, semicircular like in shape, with clear boundary to the nearby muscle, and no clear boundary to the back chest wall.The MRI signal of tumor was not even, Intermingled with fat and elastic fibers in a collagenous fibrous background. Conclusion The elastofibroma dorsi has its characteristic imaging findings，a definite diagnosis can be made in most patients with CT and MR images．