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Table 1. Definitions of TNM Stage 0a

Stage TNM Description 
0Tis, N0, M0Tis = Carcinoma in situ.b
N0 = No regional lymph node metastasis.
M0 = No distant metastasis.

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.
bThis also includes the pancreatic intraepithelial neoplasia (PanIN)-3 classification.