背部弹力纤维瘤的 CT 和 MRI 诊断  

CT and MRI diagnosis of elastofibroma dorsi

作　　者：朱止平[1] 岳军艳[1] 王娟[2] 陈杰[1] 窦文广[1] 韩东明[1] 

机构地区：[1]新乡医学院第一附属医院放射科,河南卫辉453100 [2]新乡市中心医院MRI室,河南新乡453000

出　　处：《实用放射学杂志》2017年第2期258-261,共4页Journal of Practical Radiology

摘　　要：目的：探讨背部弹力纤维瘤（EFD）的 CT 和 MRI 表现及其诊断价值,提高对 EFD 的认识。方法回顾性分析经手术病理证实的20例（36个病灶）EFD 患者的 CT 或 MRI 图像,其中12例行胸部 CT 平扫,4例行胸部 MRI 平扫,4例行肩部 MRI 平扫,分析其 CT 及 MRI 表现特点。结果①EFD 发病部位均位于肩胛骨内侧前锯肌与胸壁间的脂肪间隙内,表现为扁平椭圆状或半圆形的软组织肿块,与肌肉密度（信号）相似,内均见沿病灶长轴分布的脂肪密度（信号）间隔；病灶边缘不规整,病灶外侧与前锯肌和肩胛骨交界部分界不清,脂肪间隙消失。②EFD 男女性发病率、单双侧发病率及左右侧病灶大小差异均有统计学意义（P 〈0.05）,其中女性发病率及双侧发病率较高,以右侧病灶较大。结论①EFD 发病部位固定,影像学表现特殊,CT 及 MRI 检查可明确诊断。②肩胛骨与胸壁之间的机械性摩擦可能是肿瘤生长的协同因素。Objective To explore the CT and MRI manifestations and diagnosis of elastofibroma dorsi（EFD）.Methods CT or MRI findings of 20 cases （36 lesions）of EFD confirmed by surgical pathology were analyzed retrospectively.12 patients underwent plain chest CT,4 patients plain chest MRI,4 patients plain unilateral shoulder MRI.Results ① All of cases were located in the infrascapular region,between the thorax wall and serratus anterior,mainly shaped flat mound-like or semi-circular.CT densities and MRI signal intensities of the masses were similar to those of muscle with some interlaced fat-like areas within the lesions.The masses had irregular edges, with no clear boundary between the thorax wall and serratus anterior,with disappeared fat gaps.② Statistical difference were found in patients’incidence between men and women,incidence between unilateral and bilateral and lesion volume between the left and right （P 〈0.05）,and the incidence in female was significantly higher than that in male,the incidence in bilateral was significantly higher than that in unilateral,the lesion volume in the right was bigger than that in the left.Conclusion ① EFD has its characteristic location and imaging findings,so a definite diagnosis can be made with CT and MRI.② The mechanical friction between the scapula and chest wall may be related to tumor growth.

关 键 词：背部弹力纤维瘤 计算机体层成像 磁共振成像 

分 类 号：R739.92[医药卫生—肿瘤] R814.42[医药卫生—临床医学]