label: Papillary Fibroelastoma
label_lc: papillary fibroelastoma
description: "A rare benign neoplasm of the endocardium.  The vast majority of cases arise in the heart valves.  Histopathologic examination reveals a papilloma lined by endothelial cells with a central avascular core which contains fibroblasts and elastic fibers. Patients may be asymptomatic or present with ischemic or embolic events."