Small right lung with mediastinal shift and absent right pulmonary artery. Systemic arterial supply to the right lung through bronchial arteries via the hilum, and transpleural supply from enlarged phrenic arteries and intercostal arteries. Large meandering upper zone pulmonary veins drain into the superior vena cava. The inferior right pulmonary vein drains to the right atrium.
Large left pulmonary artery.
Otherwise normal heart and great vessels. No evidence of pulmonary hypertension.