CT
Small sinus venosus atrial septal defect associated with right-sided partial anomalous pulmonary venous return draining to the supracardiac superior vena cava.
Features of pulmonary hypertension in the form of a dilated main pulmonary trunk and rightward bowing of the interventricular septum.
Hypoplastic right coronary artery with left coronary dominance via the left circumflex artery, no atherosclerotic changes.