Multiplane Transesophageal Echocardiographic Detection and Differential Diagnosis of Isolated Right Pulmonary Artery Agenesis.

We present a case report of isolated right pulmonary artery agenesis detected by multiplane transesophageal echocardiography (TEE). A special emphasis is placed on its important role in the differential diagnosis and hemodynamic and functional evaluation of patients with unilateral pulmonary oligemia on chest radiograph. We also present a case report of pulmonary embolism with complete obstruction of the right pulmonary artery for better understanding and for comparison of TEE images in patients with pulmonary artery agenesis. (ECHOCARDIOGRAPHY, Volume 13, July 1996)