atrial myxoma

An atrial myxoma is a noncancerous tumor in the upper left or right side of the heart.

An atrial myxoma may create an extra heart sound, audible to auscultation just after S2.

Tell your health care provider if there is any family history of myxomas or if you have symptoms of atrial myxoma.

Less often, a presystolic murmur can be heard when a right atrial myxoma causes a tricuspid valve obstruction to blood flow.

A left atrial myxoma will cause an increase in Pulmonary Capillary Wedge Pressure.

An atrial myxoma is a benign tumor of the heart, commonly found within the left and right atria on the interatrial septum.

Atrial myxoma (benign tumor)

Rare other causes include carcinoid syndrome, endocarditis, endomyocardial fibrosis, lupus erythematosus, right atrial myxoma and congenital tricuspid atresia.