Fig. 3From: Bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman: a case reportComputed tomography angiography (coronal view) of the thoracic region displaying tortuosity and dilatation of the azygos vein. 1 azygos vein, 2 hemiazygos vein, 3 aortaBack to article page