TNM | |||
T - primary tumor | |||
For any T, add (m) for multiple tumors | |||
TX | Primary tumor cannot be assessed | ||
T0 | No evidence of primary tumor | ||
T1 | Tumor limited to pancreas and size <2 cm | ||
T2 | Tumor limited to the pancreas and size 2-4 cm | ||
T3 | Tumor limited to the pancreas and size >4 cm or invading duodenum or bile duct | ||
T4 | Tumor invading adjacent organs (stomach, spleen, colon, adrenal gland) or the wall of large vessels (celiac axis or superior mesenteric artery) | ||
N - regional lymph nodes | |||
NX | Regional lymph node cannot be assessed | ||
N0 | No regional lymph node metastasis | ||
N1 | Regional lymph node metastasis | ||
M - distant metastases | |||
MX | Distant metastasis cannot be assessed | ||
M0 | No distant metastases | ||
M1 | Distant metastasis | ||
Stage | |||
Disease stages | |||
Stage I | T1 | N0 | M0 |
Stage IIa | T2 | N0 | M0 |
Stage IIb | T3 | N0 | M0 |
Stage IIIa | T4 | N0 | M0 |
Stage IIIb | Any T | N1 | M0 |
Stage IV | Any T | Any N | M1 |
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