Malakoplakia of Bladder
Section Editor: Dharam M. Ramnani, MD
Virginia Urology, Richmond, VA, USA
Image Description
Malakoplakia of the urinary bladder. High power view shows abundant foamy histiocytes (von Hansemann cells) and basophilic targetoid structures called Michaelis-Gutmann bodies. These laminated targetoid structures are formed by calcium phosphate deposition on bacteria or their fragments and can be highlighted by calcium stains.