[Nephroblastoma with intestinal differentiation].

Available are two cases of Wilms's tumor with focal intestinal differentiation. Goblet- and endocrine-like cells as well as those similar to enterocytes were identified in one of the tumors upon electron microscopy. Squamous epithelial, cartilaginous cells, rabdomyoblasts presented in both cases. Problems of histogenesis and prognosis are under discussion.