Liver cancer treatment. Coloured X-ray angiogram of a catheter being used to inject anti-cancer drugs (chemotherapy) to treat a liver cancer (not seen). The blood vessels, into which the drugs are being injected, and the catheter, are made visible by a contrast medium (dark blue) that shows up on the X-ray. The blood vessels (upper left) are in the liver, which sits partially below the ribs (red) on the right-hand-side of the body. The catheter is seen as the thin tube (lower right) passing over the bones (vertebrae) of the spine (running down far right). Parts of the bowels (pink and white) are seen at lower left.