Frontal chest x-ray shows mild volumetric reduction of right lung, in association with dextrocardia and a tubular shaped opacity along right cardiac border.
Oblique incidence displayed that tubular opacity as a venous structure, arising from the right hilum, extending to the inferior vena cava topography. These findings are highly suggestive of Scimitar syndrome, a form of partial pulmonary anomalous venous return (PAPVC).