Right atrial septal aneurysm: an unusual cause of recurrent pulmonary embolism

Angiography was used to diagnose atrial septal aneurysm in a 46-yr-old man suffering from recurrent pulmonary emboli, who had normal venograms of his lower extremities. This case demonstrates the usefulness of searching for sources of emboli other than deep venous thrombosis, but illustrates the limits of two-dimensional echocardiography in diagnosing atrial septal aneurysm.