Hi... Did you "search" it ?? Just on computer..not on here. Just put "retroaortic left renal vein" in the "search" or Google and see what comes up.. I'm with Silver and Gold.. I know Renal is Kidney, retro is "behind" or "backwards" .. but that's as far as I get with it .. sorry... Good luck
Sandy
Hi ,
I know that renal relates to the kidney , so I would think it is a kidney vein . Sorry I can,t be of more help .
Best wishes Angie