Metanephric Adenoma : Microscopic Features
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
Microscopic Features: About 50% of metanephric adenomas show papillary architecture focally. The papillary areas consist of short papillary fronds with hyalinized cores (shown here) or papillary infoldings within cystic spaces resembling glomeruloid structures (see images 20 & 21).