Stage 1 pancreatic cancer

The stage of a cancer tells the doctor about its size and whether it has spread. It helps your doctor decide on which treatment you need.

Your doctor may not be able to tell you the exact stage of your cancer until after your surgery, if you are able to have it.

Stage 1 is part of the number staging system. There are 4 stages of pancreatic cancer numbered from 1 to 4.  

Doctors can also use the TNM system to stage your cancer. TNM stands for Tumour, Node, Metastases. 

Stage 1 pancreatic cancer means the cancer is not more than 4cm in size and it hasn't spread outside the pancreas. It is split into 1A and 1B.

Stage 1A

Stage 1A means the cancer is completely inside the pancreas and is 2cm or less. There is no cancer in the lymph nodes Open a glossary item or other areas of the body.

In TNM staging, this is the same as T1, N0, M0.

Diagram showing stage 1A cancer of the pancreas

Stage 1B

Stage 1B means the cancer is completely inside the pancreas and is larger than 2cm but no bigger than 4cm. There is no cancer in the lymph nodes or other areas of the body.

In TNM staging, this is the same as T2, N0, M0.

Diagram showing stage 1B cancer of the pancreas

Treatment for stage 1 pancreatic cancer

The stage of your cancer helps your doctor to decide which treatment you need. Treatment also depends on:

  • your type of cancer (the type of cells the cancer started in)
  • where the cancer is 
  • if they can remove (resect) the cancer
  • your general health and level of fitness

The stage of the cancer and these other factors can also give an idea of your outlook (prognosis).

For stage 1 pancreatic cancer, you generally have surgery and chemotherapy.

Other stages

  • AJCC Cancer Staging Manual (8th edition)
    American Joint Committee on Cancer
    Springer, 2017

  • Cancer of the Pancreas: European Society Medical Oncology Clinical Practice Guidelines
    M Ducreux and others
    Annals of Oncology, 2015. Volume 26, Supplement 5, v56 to v68

  • BMJ Best Practice Pancreatic Cancer
    H M Kocher and others
    BMJ Publishing Group, last updated November 2022

  • Pancreatic cancer in adults: diagnosis and management
    National Institute for Health and Care Excellence (NICE), February 2018

  • Principles and practice of oncology (11th edition)
    VT De Vita, S Hellman and SA Rosenberg
    Lippincott, Williams and Wilkins, 2019

  • Pancreatic cancer
    J D Mizrahi and others
    The Lancet, June 2020. Volume 395, Pages 2008 to 2020

Last reviewed: 
01 Feb 2023
Next review due: 
01 Feb 2026

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