Each kidney typically has one vein that carries blood filtered by the kidney into the circulatory system. These are called the renal veins. Usually there’s one on the right and one on the left.

Nutcracker syndrome is a rare condition that happens when the vein that drains your left kidney gets squeezed between big blood vessels in your belly. It can be very painful, but it's usually not ...

Renal cell carcinoma is a type of cancer that starts in the tiny filtering tubes of the kidneys. It can metastasize or spread to the lungs, the brain, and various other parts of the body. Share on ...

The 2002 TNM formulation defines a pT3b tumor as one that ‘extends into the renal vein or its segmental (muscle containing) branches.’ This definition elicits uncertainty when veins with little muscle ...

Although renal sinus vein invasion is the most common site of extrarenal involvement in clear cell renal cell carcinoma (CC), CC also spreads by lymphatics. As cortical lymphatics drain into the sinus ...

Renal vein thrombosis (RVT) is when a blood clot develops anywhere along the renal vein. This is the vein that drains blood from the kidneys. RVT is rare but can be life threatening. People with renal ...

The kidneys help remove waste products from the body, maintain balanced electrolyte levels, and regulate blood pressure. Share on Pinterest MoMo Productions/Getty Images The kidneys are a pair of bean ...