| T0 | No tumor |
| T1 | Tumor confined to pancreas |
| T1a | Tumor <2 cm |
| T1b | Tumor >2 cm |
| T2 | Tumor extension into duodenum, bile duct |
| or peripancreatic tissues | |
| T3 | Tumor extension into stomach, colon, or |
| adjacent great vessels | |
| N0 | No regional nodal metastases |
| N1 | Regional nodal metastases |
| M0 | No distant metastases |
| M1 | Distal metastases. |