Hartman D S, Goldman S M, Friedman A C, Davis C J, Madewell J E, Sherman J L
Radiology. 1981 May;139(2):451-8. doi: 10.1148/radiology.139.2.7220890.
Previous reports of angiomyolipoma have emphasized the ultrasonic finding of a very echogenic intrarenal mass. Ten cases of angiomyolipoma for which ultrasound examinations were available were retrospectively reviewed and correlated with their pathologic findings, and, when available, with computed tomographic findings to determine if other sonographic patterns could be recognized. In addition to the typical echodense pattern (six cases), a mixed pattern (two cases) and a low sonodense pattern (two cases) were discovered. To determine if the typical echodense pattern is specific for angiomyolipoma, 42 cases of renal cell carcinoma for which ultrasound examinations were available were also retrospectively reviewed. In two cases of renal cell carcinoma echodense patterns that were indistinguishable from those of angiomyolipoma were found. Two conclusions are reached: (a) there is a spectrum of ultrasonic findings with angiomyolipoma, and (b) the presence of an echodense intrarenal mass, although very suggestive of angiomyolipoma, is not pathognomonic.
以往关于血管平滑肌脂肪瘤的报告强调了超声检查发现肾内高回声肿块。对10例有超声检查结果的血管平滑肌脂肪瘤病例进行回顾性分析，并将其与病理结果相关联，如有计算机断层扫描结果也一并关联，以确定是否能识别出其他超声图像模式。除了典型的高回声模式（6例）外，还发现了混合模式（2例）和低回声模式（2例）。为了确定典型的高回声模式是否为血管平滑肌脂肪瘤所特有，对42例有超声检查结果的肾细胞癌病例也进行了回顾性分析。在2例肾细胞癌中发现了与血管平滑肌脂肪瘤难以区分的高回声模式。得出两个结论：（a）血管平滑肌脂肪瘤存在一系列超声表现；（b）肾内高回声肿块的存在虽然很提示血管平滑肌脂肪瘤，但并非确诊依据。
