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Stage II Gallbladder Cancer AJCC v6
Stage II gallbladder cancer is divided into stages IIA and IIB. In stage IIA, cancer has spread beyond the tissue that covers the gallbladder and/or to the liver and/or to one nearby organ, such as the stomach, small intestine, colon, pancreas, or bile ducts outside the liver. In stage IIB, cancer has spread in one of the following ways: (1) beyond the innermost layer to the connective tissue and to nearby lymph nodes; or (2) to the muscle layer and nearby lymph nodes; or (3) beyond the muscle layer to the connective tissue around the muscle and nearby lymph nodes; or (4) through the tissue that covers the gallbladder and/or to the liver and/or to one nearby organ, such as the stomach, small intestine, colon, pancreas, or bile ducts outside the liver, and to nearby lymph nodes. (NCI Dictionary)