Latest Cancer TreatmentsDr. Mohammadreza Dabiri
Dr. Mohammadreza Dabiriفارسی
Clinical tool

Colon Cancer TNM Staging Calculator (AJCC 8th Edition)

From T, N and M to stage 0–IVC, with the suggested adjuvant treatment

Updated: 27 October 20261 min read2 references

Colorectal cancer staging by AJCC 8th edition (after surgery or imaging).

This calculator needs JavaScript; the formula and its interpretation are in the text of this page.

An aid for clinicians; it does not replace clinical judgement, local protocols or the drug label. Double-check every result before prescribing.

8th-edition points

  • M1 is split into three groups: M1a one organ, M1b two or more organs, M1c peritoneum [1].
  • N1c means tumour deposits in the pericolic fat without positive nodes [1].
  • At least 12 lymph nodes should be examined.

Adjuvant chemotherapy for stage III: 3 months of CAPOX in low risk (T1–3 N1) and 6 months in higher risk [2]. Regimens: CAPOX, FOLFOX.

Related cancer types

Colorectal cancer

Treatment regimens (physicians)

FOLFOX (mFOLFOX6): dose, schedule and side effectsCAPOX (XELOX): dose, schedule and side effectsFOLFIRI regimen: dose, schedule and side effectsTotal neoadjuvant therapy (TNT) in rectal cancer: the RAPIDO regimenFOLFOXIRI with bevacizumab in metastatic bowel cancer

Physician tools and lessons

10 cheap steps that save patients' livesGermline genetic testing in cancer: who, and which genes?

References

2 references
Show all references, 1 with a study cardClose the reference list

Numbers in the text, such as [1], refer to these sources. Sources with a “Study card” button are summarised in the site’s evidence library.

  1. 1
    AJCC 8th Edition: Colorectal CancerWeiser MR · Ann Surg Oncol · 2018;25:1454-1455
    DOIPubMed Back to text: 1 2
  2. 2
    Duration of Adjuvant Chemotherapy for Stage III Colon CancerGrothey A, Sobrero AF, Shields AF, et al · N Engl J Med · 2018;378:1177-1188
    Study cardDOIPubMed Back to text

This page is based on reputable scientific sources and was last updated on 27 October 2026. The content of this website is for educational and informational purposes only and does not replace consultation, diagnosis or treatment by a specialist physician. Consult your treating physician about any treatment decision.

Printed from the website; the full and up-to-date version: https://drdabiri.com/en/tools/colon-cancer-staging-tnm/

Related pages

27 October 2026 Should I Be Screened for Lung Cancer? (Pack-Year Calculator) Pack-year calculator and lung cancer screening eligibility for low-dose CT according to the US Preventive Services Task Force (2021). 27 October 2026 Localised Prostate Cancer Risk Group Calculator Tool to assign the risk group of localised prostate cancer from PSA, ISUP grade group and clinical stage, with the suggested treatment for each group. 27 October 2026 Child-Pugh and ALBI Score Calculator in Liver Cancer Child-Pugh score and ALBI grade calculator to assess liver function in hepatocellular carcinoma (HCC) and choose treatment according to BCLC.