We present a case of synchronous renal cell carcinoma and urothelial carcinoma. Our case was a true collision tumor and both components were high grade. Metastasis to the adrenal gland by the urothelial carcinoma was observed. The morphologic impression was confirmed with GATA3 expression by the urothelial carcinoma component and PAX8 expression by the renal cell carcinoma component. We have reviewed the contemporary literature of this unusual dual diagnosis.

中文翻译：

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尿路上皮细胞癌与肾透明细胞癌的碰撞肿瘤

我们介绍了一个同时发生的肾细胞癌和尿路上皮癌的病例。我们的案例是一个真正的碰撞肿瘤，两个组件都是高级别的。观察到尿路上皮癌转移至肾上腺。形态学印象通过尿路上皮癌成分的 GATA3 表达和肾细胞癌成分的 PAX8 表达得到证实。我们回顾了这种不寻常的双重诊断的当代文献。