增生性肌炎MRI表现2例

发布时间：2018-04-20 08:33

  本文选题：增生性肌炎 + 磁共振成像　； 参考：《中国医学影像技术》2017年06期

【摘要】：正病例1,患者男,34岁,10余天前无意间发现右大腿外侧一肿块,偶有酸痛不适。MR平扫示右侧股外侧肌见一梭形结节,沿肌肉方向生长,约2.5cm×1.6cm,呈稍长T1混杂T2信号,边界不清,T2WI示病灶内可见低信号网状影(图1A),病变周围可见水肿带;增强扫描明显强化,其内网状影不强化(图1B)。MRI诊断为恶性肿瘤可能。行肿块切除手术。术中见右股外侧肌内一韧性包块,边界欠清,表面较光滑,活动性好。病理见梭形细胞与横纹肌纤维间穿插分布,似"棋盘"样,梭形细胞部分胖大,
[Abstract]:In case 1, a lump was found in the lateral right thigh by accident more than 10 days before the age of 34 years. Mr plain scan showed a fusiform nodule in the right lateral femoral muscle, which grew along the direction of the muscle, about 2.5cm 脳 1.6 cm, showing a slightly longer T1 mixed T2 signal intensity. Hypointensity reticular shadow could be seen on T2WI (Fig. 1), edema zone could be seen around the lesion, enhanced scan was obviously enhanced, and its internal reticular shadow was not enhanced (1B).MRI was possible to diagnose malignant tumor). Mass resection was performed. A ductile mass was found in the right lateral femoral muscle during the operation, the boundary was not clear, the surface was smooth and the activity was good. Histopathologically, it was found that the spindle cells interlaced with striated muscle fibers, like "chessboard", and the fusiform cells were partly fat.
【作者单位】： 中国人民解放军第175医院医学影像科;
【分类号】：R445.2;R685.2
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本文编号：1777036