作者应用光镜、电镜观察及显微分光光度计DNA含量测定研究了51例肾母细胞瘤,以便为本病的诊断和治疗提供依据。研究结果表明:该瘤在光镜及电镜下呈癌肉瘤结构,由上皮性瘤细胞、肉瘤细胞和未分化的瘤细胞组成,其超微结构与正常肾小管上皮细胞及纤维母细胞基本相似。当癌细胞成分以肉瘤细胞为 The authors applied light microscopy, electron microscopy and determination of DNA content of the spectrophotometer 51 cases of nephroblastoma in order to provide the basis for the diagnosis and treatment of the disease. The results showed that the tumor was composed of epithelial tumor cells, sarcoma cells and undifferentiated tumor cells under light microscope and electron microscope. The ultrastructure of the tumor was similar to that of normal renal tubular epithelial cells and fibroblasts. When the cancer cell components to sarcoma cells