<prompt> A 60-year-old woman, Sridevi presents with a murmur suggestive of mitral stenosis and an echocardiography confirmed a mass attached to the fossa ovalis of the left atrial septum. What is the most likely diagnosis?Cardiac myxomaEndocarditisLymphomaMetastatic cancer to the hea  <response>: Atrial myxoma is the most common benign cardiac tumor. It usually presents with symptoms of valvular obstruction mural or tricuspid valve. It is attached by a pedicle to the fossa ovalis of the left atrial septum. It is treated by resection. 