Stages, types and grades of pancreatic cancer

TNM staging for pancreatic cancer

TNM stands for Tumour, Node, and Metastasis. It's one of the staging systems for pancreatic cancer. The stage tells your doctor about the size if the cancer and if it has spread.

How does my doctor decide the stage?

The tests and scans you have when diagnosing your cancer give some information about the stage. But 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.

Knowing the stage of the cancer helps your doctor decide on the best treatment for you. Doctors may also use the number staging system.

Find out about the number staging system

Tumour (T)

Tumour (T) describes the size and depth of the tumour (area of cancer).

Tis (carcinoma in situ)

This is a very early stage pancreatic cancer. It hasn't grown into the deeper layers of tissue within the pancreas. It is uncommon for pancreatic cancer to be diagnosed this early.

T1

This means the cancer is inside the pancreas and is 2cm or less in any direction.

Diagram showing T1 cancer of the pancreas.

T1 is split into 3 stages:

  • T1a means the cancer is no more than 0.5cm 

  • T1b means the cancer is more than 0.5cm but less than 1cm

  • T1c means the cancer is between 1cm and 2cm

T2

This means the cancer is between 2cm and 4cm in any direction.

Diagram showing T2 cancer of the pancreas.

T3

This means the cancer is bigger than 4cm but is still within the pancreas.

Diagram showing T3 cancer of the pancreas.

T4

This means the cancer has grown outside the pancreas, into the nearby large blood vessels.

Diagram showing T4 cancer of the pancreas.

Node (N)

Node (N) describes whether the cancer has spread to the lymph nodes.

  • N0 means there are no cancer cells in the nearby lymph nodes.

  • N1 means there are 1 to 3 lymph nodes that contain cancer cells.

Diagram showing stage N1 cancer of the pancreas.
  • N2 means that there is cancer in 4 or more lymph nodes.

Diagram showing stage N2 cancer of the pancreas.

Cancer that has spread to the nearby lymph nodes means there is a higher risk that cancer cells may have spread further than the pancreas.

Metastasis (M)

Metastasis (M) describes whether the cancer has spread to a different part of the body.

  • M0 means the cancer has not spread to other areas of the body such as the liver or lungs.

  • M1 means the cancer has spread to other areas of the body.

Diagram showing M1 pancreatic cancer from the TNM staging system.

Treatment

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

  • your type of pancreatic cancer

  • 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).

Find out about treatments for pancreatic cancer

This page is due for review. We will update this as soon as possible.

Last reviewed: 31 Jan 2023

Next review due: 31 Jan 2026

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