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目的:探讨肾血管平滑肌脂肪瘤(RAML)相关的误诊,拓宽诊断思路。方法:分析5例与RAML相关的误诊及其临床病理资料。结果:5例患者术前分别诊断为RAML、囊性肾癌以及脂肪瘤各1例,1例为肾癌;术后病理诊断发现:1例为肾脏混合性上皮间质肿瘤,1例为RAML囊性变,3例为RAML伴发透明细胞癌。结论:RAML术前误诊率较高,确诊仍需病理检查。诊断时需仔细分析病史观察切片并结合免疫组化标记以便确诊。
Objective: To investigate the misdiagnosis of renal angiomyolipoma (RAML) and broaden the diagnostic thinking. Methods: Five cases of misdiagnosis associated with RAML and their clinicopathological data were analyzed. Results: Five patients were diagnosed as RAML, cystic renal cell carcinoma and lipoma respectively in 1 case and 1 case as renal carcinoma respectively. Pathological diagnosis showed that 1 case was mixed renal interstitial tumor and 1 case was RAML Cystic degeneration, 3 cases of RAML with clear cell carcinoma. Conclusion: The preoperative misdiagnosis rate of RAML is high, and pathological examination is still required. Diagnosis should be carefully analyzed history observation section and combined with immunohistochemical markers for diagnosis.