Lengeds of the figures
Figure 1 The 3D print models of the 8 cases. All patients were the left pulmonary artery absence, but the left hilar confluence was present.
Red vessels refer to the aorta and branch arteries; Blue vessels, pulmonary artery; White tube, trachea and bronchi; Yellow vessel, major aortopulmonary collateral arteries; Brown tissue, diaphragm