Atypical Adenomatous Hyperplasia - 34bE12 Immunostain
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
The immunostain for high molecular weight cytokeratin 34bE12 demonstrates fragmented basal cell layer in the previous focus of atypical adenomatous hyperplasia. Some glands are completely negative, where as others show only one or two basal cells.