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目的 :评价CT扫描在诊断肾血管平滑肌脂肪瘤中的价值。材料与方法 :回顾性分析14例经手术病理证实的肾血管平滑肌脂肪瘤的CT资料。结果 :本组14例均不伴结节硬化症 ,11例为单侧发病 ,3例为双侧发病 ,其中1例合并肾包膜下血肿。肿块直径最小为1 5cm ,最大为18 9cm。CT均表现为肾区圆形或类圆形肿块 ,边界清楚 ,密度不均 ,内含软组织与脂肪密度成份 ,多以低密度脂肪成分为主 ,CT值在 -33Hu～ -90Hu左右 ,无强化表现 ,软组织部分及其中之条状分隔均有不同程度强化。结论 :CT检查可对肾血管平滑肌脂肪瘤进行定性定位诊断 ,通过薄层扫描和数字图像显示象素CT值有助于鉴别肾血管平滑肌脂肪瘤与肾癌、肾囊肿等疾病。
Objective: To evaluate the value of CT scanning in the diagnosis of renal angiomyolipoma. Materials and Methods: CT data of 14 cases of renal angiomyolipoma confirmed by surgery and pathology were retrospectively analyzed. Results: The group of 14 cases were not associated with nodular sclerosis, 11 cases of unilateral disease, 3 cases of bilateral disease, including 1 case of subrenal hematoma. The smallest diameter of the tumor is 15cm and the largest is 18 9cm. CT showed the kidney area round or round-like mass, the border is clear, uneven density, containing soft tissue and fat density components, mostly low-density fat content, CT value of -33Hu ~ -90Hu or so, no strengthening Performance, soft tissue part and the stripe of which have different levels of enhancement. Conclusion: CT examination can diagnose renal angiomyolipoma qualitatively. It is helpful to differentiate renal angiomyolipoma from renal cell carcinoma and renal cyst by using CT scan and digital image.