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少脂肪性肾血管平滑肌脂肪瘤的CT诊断与鉴别

Zhaojun JIN,Qingtao HAN,Yunfei HAN

Chinese Imaging Journal of Integrated Traditional and Western Medicine（2010）

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Abstract
目的:探讨少脂肪性肾血管平滑肌脂肪瘤(AML)的CT表现,提高对该病的诊断水平.方法:回顾性分析12例经手术病理证实并行CT平扫及双期增强扫描的少脂肪性肾AML CT表现,着重分析病灶的大小、部位、轮廓、密度以及动态增强扫描表现等.结果:12例12个病灶均表现为实性肿块,CT平扫7个病灶呈均匀略高密度,2个病灶呈等密度,3个病灶内示散在小结节状低密度影,9例肿块呈类圆形,3例呈不规则形,全部肿块与肾实质分界清楚,8例肿块突向肾轮廓外1/3～1/2,9例病灶在CT增强扫描肾皮质期明显强化,6例为均匀强化,3例病灶内散在低密度灶未见强化,7例在肾实质期呈相对低密度,2例仍强化明显,3例双期增强均扫描表现为病灶内轻度条片状强化.结论:少脂肪性肾AML有一定的CT表现特征,有利于和肾细胞癌相鉴别.
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Key words
Renal angiomyolipoma,X-ray computed,Tomography
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