Aortic orgin of the left pulmonary artery. Variant of tetralogy of Fallot.

A case of tetralogy of Fallot with aortic origin of the left pulmonary artery is presented. This rare malformation should be suspected in a child with stunted growth, cyanosis, a continuous murmur over the pulmonary area and a hypervascular left lung on chest roentgenogram. Final diagnosis depends upon cardiac catheterization and angiocardiography. During surgical correction of the tetralogy, the left pulmonary artery can be divided from the aorta and anastomosed to the main pulmonary artery.