Complete agenesis of the right and left pulmonary arteries, with main pulmonary artery originating from the right ventricle, presenting as primary pulmonary hypertension of the newborn: case report.

A female infant who had been misdiagnosed as having primary pulmonary hypertension of the newborn was found to have agenesis of the branch pulmonary arteries with collateral-dependent pulmonary circulation. The intracardiac anatomy was completely normal. Unifocalization of branch pulmonary artery was done, followed by stenting of the ductus arteriosus.