背部弹力纤维瘤的影像学表现

牛根亮1，贺映波1 ，张艳2 *

（1. 陕西省渭南市第一医院影像科，陕西 渭南，714000；2.陕西省人民医院影像科，陕西 西安，710068）

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摘要：

目的 对背部弹力纤维瘤的影像学征象进行评价和总结。方法 选取2010 年1 月至2017 年5 月我院收治的13 例背部弹 力纤维瘤患者为研究对象，患者接受CT 或MRI 检查，且经手术或穿刺后病理证实为背部弹力纤维瘤。13 例患者均为女性，最 小年龄43 岁，最大年龄76 岁。结果 背部弹力纤维瘤病变显示为背阔肌、肩胛骨下方、菱形肌及前锯肌内侧丘状或不规则状密 度（或信号不均匀）软组织肿块。CT 平扫显示等密度或稍低于周围肌肉组织密度，部分可见条状、线状或岛样的脂样组织。MRI 平扫时病灶在T1WI 上与周围肌肉组织信号相似或稍低于周围肌肉组织信号；在T2WI 病灶呈稍高信号（与周围软肌肉比较），其内信号不均匀，抑脂后病灶内稍高信号被抑制。结论 背部弹力纤维瘤是一种临床比较少见的、良性的、生长缓慢的纤维增生 病变，50~70 岁女性好发。背部弹力纤维瘤有常见的好发部位，且具有一些特征性的影像学（CT 及MRI）表现。

关键词：背部弹力纤维瘤；CT；MRI

中图分类号：R739.4文献标志码：A文章编号：2096-1413(2018)03-0006-03

Imaging characteristics of dorsal elastic fibroma


NIU Gen-liang 1, HE Ying-bo 1, Zhang Yan 2 *
(1. Imaging Department, the First Hospital in Weinan, Weinan 714000; 2. Imaging Department, Shaanxi Provincial People``s Hospital, Xi``an 710068, China)

ABSTRACT: Objective To evaluate and summarize the imaging characteristics of the dorsal elastic fibroma. Methods Thirteen dorsal elastic fibroma patients admitted in our hospital from January 2010 to May 2017 were selected as the study objects, the patients received CT or MRI detection, and all the patients were confirmed as the dorsal elastic fibroma by pathological examination. Thirteen dorsal elastic fibroma patients were female, with the youngest age of 43 years and the maximum age of 76 years. Results The lesions of dorsal elastic fibroma showed a mound or irregular density (or uneven signal) soft tissue mass on latissimus dorsi muscle, below the scapula, rhomboid muscle and serratus anterior muscle. CT scan showed the signals of lesions were equal or slightly lower than the surrounding muscle tissue density, part of the strip, line or island like fat tissue. MRI scan showed lesions in T1WI with the surrounding muscle tissue signal similar to or slightly lower than the surrounding muscle tissue signal; slightly high signal in T2WI lesions (compared with the surrounding soft), the signal was not uniform, slightly high signal of lesions was suppressed after fat suppression. Conclusion Dorsal elastic fibroma is a rare, benign, slow-growing fibrous hyperplasia lesion, the 50~70 years old women have high incidence population. Dorsal elastic fibroma has a common primary sites and some characteristic imaging (CT and MRI) manifestations.
KEYWORDS: dorsal elastic fibroma; CT; MRI

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