[A case of @entity10230 resembling XXXX ].

@entity1 @entity227 @entity10230 @entity5 @entity812 @entity12878 @entity1290
A 35-year old @entity1 was hospitalized for left @entity812 . IVP showed @entity227 with @entity1290 . Selective renal arteriogram revealed avascular mass in the left upper pole. The upper calyx was irregularly distorted. Left nephrectomy was carried out. Grossly, the upper pole was replaced by whitish, firm and homogeneous @entity5 , which was 7 X 7 cm in diameter and protruded into the upper calyx. Histologically, the @entity5 was composed of both epithelial and mesenchymal components. The epithelial elements consisted of cysts and tubules, and the mesenchymal elements of loosely textured fibroblasts and smooth muscle cells. Other elements could not be identified. This case was diagnosed as @entity10230 histologically resembling @entity12878 of infancy. @entity12878 is rare in adults. Continued maturation may finally transform it either to benign mixed @entity5 as in our case or @entity5 if stroma matures dominantly.
