Ann Pediatr Card Close
 

Figure 1: Axial (a) and coronal (b) computed tomography images show a blind right ventricular outflow tract ending in an atretic pulmonary valve. The main, right, and left pulmonary arteries are markedly hypoplastic measuring 1 mm each. The aortopulmonary collateral has long segments of stenosis (red arrows). Volume rendering of the outflow tract (c) and aortic collaterals (d) shows three collaterals numbered 1–3, the last two are stenotic. RVOT: Right ventricular outflow tract, PV: Pulmonary valve, MPA: Main pulmonary artery, RPA: Right pulmonary artery, LPA: Left pulmonary artery, MAPCA: Major aortopulmonary collateral artery

Figure 1: Axial (a) and coronal (b) computed tomography images show a blind right ventricular outflow tract ending in an atretic pulmonary valve. The main, right, and left pulmonary arteries are markedly hypoplastic measuring 1 mm each. The aortopulmonary collateral has long segments of stenosis (red arrows). Volume rendering of the outflow tract (c) and aortic collaterals (d) shows three collaterals numbered 1–3, the last two are stenotic. RVOT: Right ventricular outflow tract, PV: Pulmonary valve, MPA: Main pulmonary artery, RPA: Right pulmonary artery, LPA: Left pulmonary artery, MAPCA: Major aortopulmonary collateral artery