Where is fibroelastoma most likely to be found in the heart?

Fibroelastomas are a type of cardiac tumor that are most commonly found on heart valves, particularly in association with the left-sided valves such as the mitral valve and aortic valve. Their typical location is on the valve surface, and they can often be found downstream from the valve due to their ability to form on the endocardial surface where blood flow can create a conducive environment for their development.

This characteristic location on the downstream side of the valve is important as it correlates with their typical role in projecting into the blood flow, potentially causing embolic events if they dislodge. It also highlights the nature of the tumor being strongly associated with areas of turbulence and shear stress in the cardiac cycle, making it more likely to form on movable valve structures.

While other anatomical locations may experience different types of lesions or tumors, the specific association of fibroelastomas with valves and their common downstream position is critical in understanding their clinical implications and guiding diagnostic imaging and treatment approaches.