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Colon Cancer Treatment (PDQ®)

  • Updated: 06/05/2014

Table 2. Definitions of TNM Stage I

Stage TNMa,b Dukesc MACd Description Illustration  
IT1, N0, M0AAT1 = Tumor invades submucosa.
T2 = Tumor invades muscularis propria.
N0 = No regional lymph node metastasis.
T2, N0, M0AB1M0 = No distant metastasis.

T = primary tumor; N = regional lymph nodes; M = distant metastasis.
Reprinted with permission from AJCC: Colon and rectum. In: Edge SB, Byrd DR, Compton CC, et al., eds.: AJCC Cancer Staging Manual. 7th ed. New York, NY: Springer, 2010, pp 143-164.
The explanations for superscripts a–g are at the end of Table 5.