Metanephric adenoma of the kidney: histologic, immunohistochemical and DNA content analysis study. A case report

Metanephric adenoma is an uncommon and distinct clinicopathologic entity, recently described among benign epithelial kidney tumors. The authors report a case of a metanephric adenoma in a 70-year-old man. Because of its benign clinical course, it is important to distinguish metanephric adenoma from renal cell carcinomas and adult Wilms' tumor for which it is usually mistaken. Clinical, pathologic features and diagnostic problems of the case are discussed.