[Nephroblastoma in adults: apropos of 2 cases]

Adult nephroblastoma is a rare tumor. The authors report two new cases observed in a 30 and 34 years old men in whom the diagnosis was made by histo-pathology. They were admitted for enormous kidney mass. We performed nephrectomy in one case, and surgical biopsy in the other. No adjuvant treatment was given. The prognosis was fatal. They study the particular features of this tumour. Its prognosis appeared to be poorer than that of renal adenocarcinoma.