Toddler with respiratory distress and a cardiac murmur Pediatric Imaging Cardiovascular July 3, 2024June 14, 2024 CXR AP shows markedly decreased pulmonary vascularity in the left lung when compared to the right lung. The lungs are clear. The diagnosis was peripheral pulmonary stenosis due to left pulmonary artery stenosis. Related Published July 3, 2024June 14, 2024