Wilms Tumor
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
In some nephroblastomas with extensive epithelial component, one may see polypoid projections extending into lumen-like spaces. The polypoid fronds are composed of tightly packed tubules with minimal stroma in between. Blastemal component is not apparent. Higher magnification of the previous two images.