cases, peritoneum Week 81: Case 2 April 26, 2023 pathadmin 1. Presented by Fred Askin, M.D. and prepared by Carol Allan, M.D.This lesion represents a 1cm nodule seen on one surface of a fragment of aortic valve. The patient underwent aortic valve replacement because of acute endocarditis./images/fred2a.jpg/images/fred2b.jpg/images/fred2c.jpgMesothelial papillomaHistiocytomaHistiocytoid hemangiomaMesothelial/Macrophage Incidental Cardiac Excrescences Loading...