Sarcomas and sarcomatoid and mixed malignant tumors of the kidney in adults—part III

摘要: The clinical and pathologic features of 43 cases malignant renal tumor with mixed histopathologic are presented. characteristic embryonal nephroblastoma (Wilms' tumor) infancy childhood were seen in five adult cases. Renal-cell carcinoma, intimately associated a more pleomorphic spindle-cell or giant-cell malignancy resembling sarcoma, was the lesion 37 Areas osteogenic sarcoma noted three tumors this latter group foci transition carcinoma cells to sarcomatoid could be demonstrated. A third distinctive (one case series) transitional-cell kidney malignant-appearing stromal component. term “sarcomatoid” is appropriate present incomplete state knowledge these unusual neoplasms.