What veins and structures does the left renal artery pass behind?

The left renal artery passes behind structures that include the body of the pancreas and the splenic vein. This configuration is important in understanding the anatomy of the mid-abdomen, particularly when considering surgical approaches and the implications in conditions such as vascular surgery or traumatic injuries.

The left renal artery arises from the abdominal aorta and ascends to the hilum of the left kidney. In its course, it travels posterior to the body of the pancreas. Additionally, it passes behind the splenic vein, which drains the spleen and often runs medial to the pancreas. This relationship is crucial when considering the anatomical spaces and potential complications that can arise during pancreatoduodenectomies or splenectomies, as these vessels need to be carefully navigated or preserved during surgical procedures.

Understanding these anatomical relationships helps surgeons avoid inadvertent injury to vascular structures and promotes safe operative techniques in this region.