label: Stage III Gallbladder Cancer AJCC v7
label_lc: stage iii gallbladder cancer ajcc v7
description: Stage III includes: IIIA (T3, N0, M0); IIIB (T1-3, N1, M0). T3: Tumor perforates the serosa (visceral peritoneum) and/or directly invades the liver and/or one other adjacent organ or structure, such as the stomach, duodenum, colon, pancreas, omentum, or extrahepatic bile ducts.  T1: Tumor invades lamina propria or muscular layer.  T2: Tumor invades perimuscular connective tissue; no extension beyond serosa or into liver. N0: No regional lymph node metastasis.  N1: Metastases to nodes along the cystic duct, common bile duct, hepatic artery, and/or portal vein.  M0: No distant metastasis. (from AJCC 7th Ed.)