What type of vein does the left adrenal vein typically drain into?

The left adrenal vein typically drains into the left renal vein. This anatomical relationship is an important aspect of venous drainage in the retroperitoneal space. The left adrenal (or suprarenal) gland is located above the left kidney, and its vein exits the gland to enter the left renal vein rather than the inferior vena cava directly. This pathway is significant because it reflects the asymmetrical drainage patterns in the body where the left side often has unique anatomical considerations compared to the right side.

Understanding this drainage pattern is essential for interventional radiology, especially during procedures involving adrenal masses or renal interventions. Knowledge of these anatomical details can assist professionals in anticipating possible complications or variations in venous access and drainage during procedural planning. The left renal vein also receives tributaries from the left gonadal vein and lumbar veins, further establishing its role as an important collector of venous blood from the left side of the body.