MRI诊断背部弹力纤维瘤

发布时间：2018-04-24 17:35

本文选题：纤维瘤 + 肩胛　；参考：《中国医学影像技术》2015年09期

【摘要】：目的探讨背部弹力纤维瘤的MRI表现和诊断价值。方法回顾性分析14例经MRI及手术病理证实的背部弹力纤维瘤,其中3例接受患侧肩部平扫,6例接受胸部平扫,5例接受胸部平扫及增强,2例同时进行了延迟增强扫描,分析其临床及MRI表现特点。结果 14例均为女性,年龄47~78岁,病灶均位于背部肩胛下角区肌肉深面与胸壁之间的脂肪间隙内,14例中有9例为双侧病灶,除了临床表现为双侧病变的5例外,4例为临床表现为单侧病变而胸部MR检查发现对侧有较小的亚临床阶段病灶。MR检查共发现23个病灶。背部弹力纤维瘤在轴位及冠状位呈扁丘状,矢状位呈类圆形;T1WI和T2WI均呈条纹状间隔排列的骨骼肌样低信号和脂肪样高信号,脂肪抑制序列脂肪样高信号被抑制,7个病灶内见小的局灶性囊变;病变边缘不整。增强扫描中5例9个病灶见条纹状、斑片状中等强化,2例4个病灶延迟增强扫描呈进行性强化。结论中老年女性双侧或单侧肩胛下角区扁丘状肿块,MRI表现为骨骼肌样低信号与脂肪样高信号条纹状间隔排列、条纹状及斑片状中等强化者,应考虑背部弹力纤维瘤。双侧同时检查有利于发现亚临床阶段病变。
[Abstract]:Objective to investigate the MRI findings and diagnostic value of elastic fibroma in the back. Methods 14 cases of elastic fibroma of the back proved by MRI and pathology were retrospectively analyzed. Among them, 3 cases received plain scan of affected shoulder, 6 cases received chest plain scan, 5 cases received chest plain scan and 2 cases underwent delayed enhanced scan. The clinical and MRI features were analyzed. Results all the 14 cases were female, aged 4778 years. The lesions were located in the fat space between the deep muscle of the dorsal subscapular region and the chest wall in 9 of the 14 cases. Except 5 cases with bilateral lesions, 4 cases were unilateral lesions and 23 lesions were found in contralateral subclinical stage by Mr examination. The dorsal elastofibroma showed flat hillock in axial and coronal position, low signal intensity in skeletal muscle and high signal intensity in fat like in sagittal position with striped intervals on T _ 1WI and T2WI. Fat suppressor sequence was inhibited with high signal intensity, small focal cystic degeneration was found in 7 lesions, and the margin of the lesion was irregular. In contrast enhancement, 9 lesions were striped in 5 cases, and 4 lesions in 2 cases, with progressive enhancement in 2 cases. Conclusion in middle and aged women, bilateral or unilateral suprascapular region flat hillock mass should be considered for dorsal elastic fibroma in the presence of skeletal myoid hypointensity and fatty hyperintense stripe spacer, striped and patchy moderate enhancement. Bilateral simultaneous examination is beneficial to the detection of subclinical lesions.
【作者单位】：中国医科大学附属盛京医院放射科;
【分类号】：R445.2;R739.92

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