摘要
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平扫及双期增强扣描的少脂肪性肾AMLCT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个病灶足等密度，3个病灶内示散在小结节状低密度影，9例肿块呈类嘲形，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。
Objective： To disseuss the CT manifestation of renal angiomyolipoma （RAML） with minimal fat and to improve the diagnostic accuracy of this disease. Methods： The CT manifestation of 12 cases of RAML with minimal fat confirmed pathologically were retrospectively analyzed. All cases were performed with plain CT scan and dual phase contrast-enhanced CT scan, then analyzed the CT manifestation in volume, position, contour, density and dynamic enhancement. Results： Twelve well-defined masses were found in all eases. On plain CT scan,7 masses showed homogeneously hyperdense,2 masses were isodense and3 masses demonstrated small amount of fat in the mass, 9 masses were round,3 masses appeared irregular,all masses were welt-circumscribed outline. 8 masses bulged 1/3-1/2 out the contour of kidney, marked enhancement in the cortical phase was seen in 9 masses,6 masses were homogeneously enhancement,3 masses with no enhancement of small amount of fat,7 masses decreased attenuation relative to renal parenchyma, 2 masses were enhanced clearly stilL, strip enhancement were found in 3 masses on dual phase contrast-enhancement scan. Conclusion： The CT features of renal angiomyolipoma with minimal fat showed certain characteristics and are useful in differentiating AMI. with minimal fat from RCC.
出处
《中国中西医结合影像学杂志》
2010年第1期30-31,54,共3页
Chinese Imaging Journal of Integrated Traditional and Western Medicine
