Origin of both coronary arteries from the pulmonary artery and aortic coarctation.

Single trunk anomalous origin of both coronary arteries from the pulmonary artery is a rare congenital cardiac anomaly. We report on 2 cases of its association with aortic coarctation, the diagnosis of which in living patients is very difficult. We think that the possibility of this anatomic arrangement should always be considered in patients with isolated aortic coarctation whose clinical condition seems impaired rather than improved after an apparently successful coarctectomy.