Table 2. Regional Lymph Nodes (N)a
| aReprinted with permission from AJCC: Gallbladder. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 211-7. | |
| NX | Regional lymph nodes cannot be assessed. |
| N0 | No regional lymph node metastasis. |
| N1 | Metastases to nodes along the cystic duct, common bile duct, hepatic artery, and/or portal vein. |
| N2 | Metastases to periaortic, pericaval, superior mesenteric artery, and/or celiac artery lymph nodes. |
