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目的 :应用超声评价肾血管平滑肌脂肪瘤。方法 :2 5例肾血管平滑肌脂肪瘤经手术和病理证实 ,其瘤体内血管、平滑肌和脂肪的数量对声像图表现的影响进行了研究。结果 :肾血管平滑肌脂肪瘤的声像图表现取决于瘤体内血管、平滑肌和脂肪的数量。当瘤体以脂肪成份为主时 ,表现为与肾窦内脂肪一样的强回声 ;当瘤体以血管和平滑肌成份为主时 ,其回声水平与肾皮质相当 ;当瘤体内脂肪和平滑肌均占较大比例时 ,表现为回声强弱不等或强弱相间的洋葱切面样改变。结论 :对于典型病例 ,超声很好诊断 ,但对不典型病例 ,可被误诊为肾癌或腹膜后肿物 ,应引起注意
Objective: To evaluate the renal angiomyolipoma with ultrasound. Methods: Twenty-five patients with renal angiomyolipoma were confirmed by operation and pathology. The effects of the number of blood vessels, smooth muscle and fat in the tumor on sonography were studied. Results: The appearance of renal angiomyolipoma depends on the amount of blood vessels, smooth muscle and fat in the tumor. When the tumor is mainly composed of fat, it shows the same strong echogenicity as that of the sinonasal sinus. When the tumor is mainly composed of blood vessels and smooth muscle, its echo level is comparable to that of the renal cortex. When the tumor contains both fat and smooth muscle A larger proportion of the performance of the echo intensity range or intensity of onion cut like change. CONCLUSIONS: For typical cases, sonography is well diagnosed, but atypical cases can be misdiagnosed as renal cancer or retroperitoneal masses and should be noted