Saccular Ascending Aorta Aneurysm: A Rare Clinical Occurrence

The saccular aneurysm at the level of the ascending aorta is an extremely rare clinical entity, considered as an effusion of part of the aortic circumference. This entity is often asymptomatic, and the pathophysiological mechanism is still poorly understood.

We describe two unusual clinical cases of saccular aneurysms of the ascending aorta, the first revealed fortuitously following hospitalization for a hemorrhagic accident with vitamin K antagonists and the second following a complication of a severe aortic insufficiency. Our experience confirms the fundamental role of modern cardiac imaging techniques in the differential diagnosis of these unusual cases and in planning the correct surgical intervention.