Where are most papillary fibroelastomas located?

Papillary fibroelastomas are benign cardiac tumors that are most commonly found on heart valves, particularly the mitral and aortic valves. These tumors typically present as small, frond-like structures attached to the surface of the valvular tissue. Their location on the heart valves is significant because they can pose a risk of embolization, thus potentially leading to stroke or other complications if fragments dislodge into the circulation.

The prevalence of these tumors on the mitral and aortic valves is largely due to the flow dynamics and the mechanical stresses placed on these structures. The interaction with blood flow may play a role in the development and attachment of the fibroelastoma. In clinical practice, recognizing the likelihood of these tumors in these specific locations is crucial for appropriate diagnosis and management.

Other sites, such as the coronary arteries, pulmonary veins, or cardiac septum, are less common for papillary fibroelastomas and do not reflect the primary locations where these tumors are typically found. Understanding the typical locations assists echocardiographers and clinicians in their evaluations and interventions regarding suspected cardiac tumors.