title: Wilms' tumor and renal cell carcinoma in retroperitoneal teratoma.
abstract: A patient with a malignant retroperitoneal teratoma that contained Wilms' tumor and renal cell carcinoma is described. The rarity of renal tissue in teratoma, and the possible mode of development of Wilms' tumor and renal cell carcinoma in such a tumor are discussed.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D000328:Adult; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary; D012186:Retroperitoneal Neoplasms / Q000473:pathology*; D013724:Teratoma / Q000473:pathology*; D009396:Wilms Tumor / Q000473:pathology*