Aortico-right ventricular tunnel.
D001013:Aorta, Thoracic / Q000002:abnormalities* / Q000473:pathology; D004200:Diseases in Twins; D006330:Heart Defects, Congenital / Q000235:genetics / Q000473:pathology; D006352:Heart Ventricles / Q000002:abnormalities*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009206:Myocardium / Q000473:pathology