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Table 5. Definitions of TNM Stage IIIa

Stage TNM Description Illustration 
aReprinted with permission from AJCC: Exocrine and endocrine pancreas. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 241-9.
IIIT4, Any N, M0T4 = Tumor involves the celiac axis or the superior mesenteric artery (unresectable primary tumor).
NX = Regional lymph nodes cannot be assessed.
N0 = No regional lymph node metastasis.
N1 = Regional lymph node metastasis.
M0 = No distant metastasis.