Stage IIB includes: (T1, N1, M0); (T2, N1, M0); (T3, N1, M0). T1: Tumor limited to the pancreas, 2 cm or less in greatest dimension. T2: Tumor limited to the pancreas, more than 2 cm in greatest dimension. T3: Tumor extends beyond the pancreas but without involvement of the celiac axis or the superior mesenteric artery. N1: Regional lymph node metastasis. M0: No distant metastasis. (from AJCC 7th Ed.) [from NCI]