Stage II is divided into stage IIA and IIB. In stage IIA, cancer has spread to the liver, gallbladder, pancreas, and/or to either the right or left branch of the hepatic artery (major blood vessel that carries blood to the liver from the heart) or the right or left branch of the portal vein (major blood vessel that carries blood to the liver from organs in the abdomen). In stage IIB, cancer has spread to nearby lymph nodes and (1) is found in the bile duct; or (2) has spread through the wall of the bile duct; or (3) has spread to the liver, gallbladder, pancreas, and/or the right or left branch of the hepatic artery or portal vein.