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混合性上皮-间叶肿瘤是罕见的双向分化的肾肿瘤,有囊性和实性区,其中实性区由形态不同的基质组成,包括卵巢样基质和异质性明显的上皮成分。该肿瘤的组织发生和克隆性起源不甚明了。本研究共观察了21例肾混合性上皮间质肿瘤,均为进行了根治性或部分肾切除的女性患者。对经福尔马林固定、石蜡包埋组织切片中上皮和间叶组成成分以及邻近的非
Mixed epithelial-mesenchymal tumor is a rare bifurcated renal tumor with cystic and solid regions, in which the solid region consists of different morphological substrates, including ovarian-like matrix and heterogeneous epithelial components. The origin of the tumor tissue and clonality is not clear. In this study, 21 cases of mixed renal interstitial tumors were observed, all of whom were female patients undergoing radical or partial nephrectomy. For formalin-fixed, paraffin-embedded tissue sections of the epithelial and mesenchymal components and adjacent non-