Template:Colorectal cancer staging

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Colorectal cancer staging   edit
AJCC stage[1] TNM stage[1] TNM stage criteria[1]
Stage 0 Tis N0 M0 Tis: Tumor confined to mucosa; cancer-in-situ
Stage I T1 N0 M0 T1: Tumor invades submucosa
T2 N0 M0 T2: Tumor invades muscularis propria
Stage II-A T3 N0 M0 T3: Tumor invades subserosa or beyond (without other organs involved)
Stage II-B T4a N0 M0 T4a: Tumor perforates the visceral peritoneum
Stage II-C T4b N0 M0 T4b: Tumor invades adjacent organs
Stage III-A
  • T1-2 N1 M0 or
  • T1, N2a, M0
  • N1: Tumor cells in 1 to 3 regional lymph nodes. T1 or T2.
  • N2a: Tumor cells in 4 to 6 regional lymph nodes. T1
Stage III-B
  • T3-4a, N1 M0 or
  • T2-3, N2a, M0 or
  • T1-2 N2b M0
  • N1: Tumor cells in 1 to 3 regional lymph nodes. T3 or T4
  • N2a: Tumor cells in 4 to 6 regional lymph nodes. T2 or T3
  • N2b: Tumor cells in 7 or more regional lymph nodes. T1 or 2
Stage III-C
  • T4a N2a M0 or
  • T3-4a N2b M0 or
  • T4b N1-2, M0
  • N2a: Tumor cells in 4 to 6 regional lymph nodes. T4a
  • N2b: Tumor cells in 7 or more regional lymph nodes. T3-4a
  • N1-2: Tumor cells in at least one regional lymph node. T4b
Stage IVa any T, any N, M1a M1a: Metastasis to 1 other part of the body beyond the colon, rectum or regional lymph nodes. Any T, any N.
Stage IVb any T, any N, M1b M1b: Metastasis to more than 1 other part of the body beyond the colon, rectum or regional lymph nodes. Any T, any N.
Stage IVc any T, any N, M1c M1c: Metastasis to the peritoneal surface. Any T, any N.
  1. 1.0 1.1 1.2 . Colorectal Cancer: Stages. Cancer.net (American Society of Clinical Oncology). Retrieved on 2019-09-26. Approved by the Cancer.Net Editorial Board, 11/2018. In turn citing:
    Amin, Mahul B.; Greene, Frederick L.; Edge, Stephen B.; Compton, Carolyn C.; Gershenwald, Jeffrey E.; Brookland, Robert K.; Meyer, Laura; Gress, Donna M.; et al. (2017). "The Eighth Edition AJCC Cancer Staging Manual: Continuing to build a bridge from a population-based to a more “personalized” approach to cancer staging ". CA: A Cancer Journal for Clinicians 67 (2): 93–99. doi:10.3322/caac.21388. ISSN 00079235.