Pancreatic cancer staging

Primary Tumor (T)

TX – Primary tumor cannot be assessed.

T0 – No evidence of primary tumor.

Tis – Carcinoma in situ.

T1 – Tumor limited to pancreas, 2 cm or less in greatest dimension.

T2 – Tumor limited to 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.

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