Primary tumor (T) | |||
TX | Primary tumor cannot be assessed | ||
T0 | No evidence of primary tumor | ||
Tis | Carcinoma in situ* | ||
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 | ||
T4 | Tumor involves the celiac axis or the superior mesenteric artery (unresectable primary tumor) | ||
Regional lymph nodes (N) | |||
NX | Regional lymph nodes cannot be assessed | ||
N0 | No regional lymph node metastasis | ||
N1 | Regional lymph node metastasis | ||
Distant metastasis (M) | |||
M0 | No distant metastasis | ||
M1 | Distant metastasis | ||
Anatomic stage/prognostic groups | |||
Stage 0 | Tis | N0 | M0 |
Stage IA | T1 | N0 | M0 |
Stage IB | T2 | N0 | M0 |
Stage IIA | T3 | N0 | M0 |
Stage IIB | T1 | N1 | M0 |
T2 | N1 | M0 | |
T3 | N1 | M0 | |
Stage III | T4 | Any N | M0 |
Stage IV | Any T | Any N | M1 |
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