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Figure 2: Aortogram in lateral view from case 1. Panel 2A is a freeze frame early during the angiogram, showing that only right coronary artery (RCA) originates from aorta. It is notable that left coronary artery (LCA) is not seen in this image. Panel 2B is a freeze frame later during the angiogram, showing LCA filling late and retrograde by collateral branches from right coronary artery. LCA empties into main pulmonary artery, consistent with the diagnosis of anomalous origin of a coronary artery from the pulmonary artery (ALCAPA)

Figure 2: Aortogram in lateral view from case 1. Panel 2A is a freeze frame early during the angiogram, showing that only right coronary artery (RCA) originates from aorta. It is notable that left coronary artery (LCA) is not seen in this image. Panel 2B is a freeze frame later during the angiogram, showing LCA filling late and retrograde by collateral branches from right coronary artery. LCA empties into main pulmonary artery, consistent with the diagnosis of anomalous origin of a coronary artery from the pulmonary artery (ALCAPA)