Definition

Stage II is divided into stages IIA and IIB, depending on where the cancer has spread in the gallbladder. In stage IIA, cancer has spread through the muscle layer to the connective tissue layer of the gallbladder wall on the side of the gallbladder that is not near the liver. In stage IIB, cancer has spread through the muscle layer to the connective tissue layer of the gallbladder wall on the same side as the liver. Cancer has not spread to the liver.