Fig. 11
From: Pictorial review of the pulmonary vasculature: from arteries to veins
Pulmonary venous variant. a Three-dimensional reconstruction of a contrast-enhanced CT shows normal pulmonary venous anatomy with two right and two left pulmonary veins draining into the left atrium. b Axial CT image showing the most common variant of pulmonary venous anatomy, a fusion of the left pulmonary veins prior to entry in the left atrium (*). c Three-dimensional reconstruction shows a fusion of the left superior and inferior pulmonary veins with a shared ostium (*)