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Click 67 year old female with absent right pulmonary artery. Axial sections of a CT angiogram showing absence of the right pulmonary artery, normal sized right heart chambers and reduced right lung vasculature. Collaterals can be seen arising from the descending thoracic aorta. (120 kV, 360 mAs, 5mm sections, 70ml of Iohexol contrast agent).

Click 67 year old female with absent right pulmonary artery. Coronal reformatted sections of a CT angiogram showing the main pulmonary artery continuing as left pulmonary artery with absence of the right pulmonary artery, normal sized right heart chambers and reduced right lung vasculature. Collaterals can be seen arising from the descending thoracic aorta. (120 kV, 360 mAs, 3 mm sections, 70ml of Iohexol contrast agent).

Click 67 year old female with absent right pulmonary artery. Axial trufisp MRI sections obtained using a 1.5 Tesla magnet (TR 3.57, TE 1.51, 4 mm slices, no contrast) shows the left pulmonary artery and its branches, but no right pulmonary artery.

Click 67 year old female with absent right pulmonary artery. Coronal turboflash MRI images obtained using a 1.5 Tesla magnet (TR 3.35, TE 1460, 4.5 mm slices, no contrast) shows the left pulmonary artery and its branches, but no right pulmonary artery. Note also the reduced volume of the right lung and its diminished vasculature.