Mediastinal Tumor Presenting as Expanding Aortic Aneurysm Diagnosed by Transesophageal Echocardiography.

This article describes a patient with suspected expanding ascending aortic aneurysm in whom transesophageal echocardiography appropriately determined the presence of a mediastinal soft tissue mass and visualized compression of the superior vena cava. (ECHOCARDIOGRAPHY, Volume 13, November 1996)