Congenital blood cysts of the heart valves are mostly seen on tricuspid and mitral valves of fetuses and infants.
Blood cysts are usually asymptomatic in adults and have often been discovered incidentally during routine echocardiographic evaluation.
There is no consensus regarding the management of blood cysts.
Histopathology revealed blood-filled space lined with a single layer of endothelium consistent with a blood cyst.
Blood cyst of the mitral valve: detection by transthoracic and transesophageal echocardiography.
Blood cyst of the mitral valve apparatus in a woman with a history of orthotopic liver transplantation.