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目的 结合手术病理结果,评价肾血管平滑肌脂肪瘤的影像学诊断.材料和方法 收治15例RAL患者其中11例经手术病理证实,4例由CT确诊.分析其腹平片、肾盂造影、B超、CT和病理资料,评价不同影像手段对本病诊断的价值和限度.结果 膜部平片和肾盂造影无特征性;B超典型表现为强回声光团,当肿瘤内含脂肪细胞较少或合并出血时可呈不典型的混合型或低回声型;CT发现肿块内脂肪低密度和低CT值为本病的特征.当表现为软组织密度时难与肾癌鉴别.结论 RAL的影像学表现与肿瘤的病理特点密切相关.B超和CT具有定性作用.不典型者仍须进一步检查.
Objective To evaluate the imaging diagnosis of renal angiomyolipoma.Materials and Methods Eleven patients with RAL were confirmed by operation and pathology and 4 by CT.Analysis of abdominal plain film, pyelography, , CT and pathological data to evaluate the value and limit of different imaging modalities in the diagnosis of this disease.Results There was no characteristic of plain film and pyelography in the film department.The B ultrasonography showed typical hyperechoic light group.When the tumor contained less fat cells Or combined with hemorrhage may be atypical mixed or hypoechoic type; CT low fat mass density and low CT value of the feature of the disease, when the performance of soft tissue density is difficult to identify with renal cell carcinoma.Conclusion RAL imaging The performance is closely related to the pathological features of the tumor.B ultrasound and CT have qualitative effects.Atomorphism still need further examination.