Figure 2From: Giant aneurysm of the atrial septum associated with premature closure of foramen ovaleHeart and lungs block, posterior view. The right atrium is divided and the q-tip is directed from right to left through the fossa ovalis showing the giant atrial septal aneurysm (arrow) covering most of the left atrial cavity. The foramen ovale was closed. LV, left ventricle; RV, right ventricle.Back to article page