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作者报道了1例肾细胞癌,CT显示在实质性肾肿块内有脂肪组织和钙化。测量肿块CT值呈负值,US呈强回声,导致误诊为血管平滑肌脂肪瘤(肾错构瘤)。而组织学和病理报告均显示为有大量骨质和脂肪、边缘带有透明细胞腺癌的细胞。 作者回顾了文献报道的2例被证实为肾细胞癌内脂肪的病例。第1例为一个大的肾周肾细胞癌。脂肪组织被认为系肾周脂肪被肾肿块卷入所致;第2例为大肿瘤伴肾窦、肾腔受侵,其内脂肪被认为是肾窦脂肪的陷入所致。
The authors reported 1 case of renal cell carcinoma, CT showed adipose tissue and calcification within the substantial renal mass. The CT value of the tumor was negative, and US showed strong echoes, leading to misdiagnosis as angiomyolipoma (renal hamartoma). Histology and pathology were reported as cells with a large amount of bone and fat with clear cell adenocarcinoma on the periphery. The authors reviewed two cases reported in the literature confirmed as renal cell carcinoma fat cases. The first case is a large perirenal renal cell carcinoma. Adipose tissue is thought to be caused by the involvement of perirenal fat in the kidney mass; the second case is a large tumor with a renal sinus that is infiltrated into the renal cavity, which is thought to be caused by the entrapment of sinistral fat.