title: Aorta--right atrial communication. Report of an unusual case.
abstract: An unusual aneurysmal aorta--right atrial communication was found in a 25-year-old man with a rounded mass in the right cardiophrenic angle. Differential diagnoses included ruptured aneurysm of the sinus of Valsalva, coronary arteriovenous fistula, rupture of a dissecting aneurysm of the ascending aorta into the right atrium, and pseudoaneurysm of the right coronary artery followed by formation of a fistula between the aneurysm and the right atrium. Closure of the communication was performed under cardiopulmonary bypass. Complete absence of the right superior vena cava with a large persistent left superior vena cava draining to the coronary sinus was an unexpected finding at operation. The origin of the communication is not known; possible anomalous coronary and noncoronary origins are considered.
mesh_terms: D000328:Adult; D001011:Aorta / Q000601:surgery*; D001014:Aortic Aneurysm / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D001027:Aortography; D003937:Diagnosis, Differential; D006325:Heart Atria / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D008297:Male; D014683:Vena Cava, Superior / Q000002:abnormalities*