What is the typical morphology of a papillary fibroelastoma?

The typical morphology of a papillary fibroelastoma is characterized by a frond-like appearance, which resembles a small, fleshy outgrowth or a coral-like structure. This type of tumor is often found on heart valves, particularly the aortic and mitral valves, and its unique morphology can contribute to its identification during echocardiographic evaluation. The frond-like projections are made up of a fibrous tissue core surrounded by an epithelial or endothelial layer, which gives it the distinctive appearance that radiologists and echocardiographers rely on for diagnosis. This morphology can lead to the potential for embolic events if pieces become dislodged. Understanding this typical appearance is crucial for differentiating papillary fibroelastomas from other types of cardiac masses that may have different characteristics.