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 Indian J Med Microbiol  
 

Figure 7: Retroaortic left renal vein in a 41-year old man. Maximum-intensity-projection image from equilibrium-phase three-dimensional spoiled gradient-echo gadolinium-enhanced MR angiogram (TR/TE, 5.0/2.0; flip angle, 20º) shows a retroaortic left renal vein (arrow) which was misinterpreted as showing dual arterial supply of the left kidney, when in fact there was early venous opacification of the retroaortic component of the left renal vein.

Figure 7: Retroaortic left renal vein in a 41-year old man. Maximum-intensity-projection image from equilibrium-phase three-dimensional spoiled gradient-echo gadolinium-enhanced MR angiogram (TR/TE, 5.0/2.0; flip angle, 20º) shows a retroaortic left renal vein (arrow) which was misinterpreted as showing dual arterial supply of the left kidney, when in fact there was early venous opacification of the retroaortic component of the left renal vein.