We identified a biatrial myxoma using transesophageal echocardiography
whose right component was missed with conventional transthoracic tech
niques. Identifying the biatrial component directs a safer approach to
right heart catheterization. Infected biatrial myxomas are both rare
and successfully managed using prolonged intravenous antibiotic therap
y followed by resection. Atrial septal defects created during the rese
ction of an infected myxoma may be safely repaired using a prosthetic
patch.