Table 1.
Staging definitions of pancreatic cancer according to the eighth edition of American Joint Committee on Cancer (AJCC) staging system1,2.
| The AJCC (eighth edition) staging definitions for pancreatic cancer | ||||
|---|---|---|---|---|
| Details | Stage | T | N | M |
| T1 Maximum tumor diameter ≤2 cm T2 Maximum tumor diameter >2 cm and ≤4 cm T3 Maximum tumor diameter >4 cm T4 Involvement of celiac axis or superior mesenteric artery (unresectable tumor) N0 No regional lymph node metastasis N1 Metastasis in 1–3 regional lymph nodes N2 Metastasis in ≥4 regional lymph nodes M0 No distant metastasis M1 Distant metastasis |
0 | Tis | N0 | M0 |
| IA | T1 | N0 | M0 | |
| IB | T2 | N0 | M0 | |
| IIA | T3 | N0 | M0 | |
| IIB | T1~3 | N0 | M0 | |
| III | T4 | Any N | M0 | |
| Any T | N2 | M0 | ||
| IV | Any T | Any N | M1 | |