Prostate cancer

Understanding your diagnosis

Prostate cancer

Understanding your diagnosis

Your test results provide a lot of information about your prostate cancer.

This may include:

  • the cells it started in (cancer type)
  • whether it has spread from where it started (cancer stage)
  • whether it is likely to grow quickly or slowly (cancer grade).

Your specialist uses this information to explain how the cancer could affect you in the future (your prognosis), and what your treatment options are. Your specialist may arrange further tests if more information is required. 

What you need to know

Prostate cancer type

Nearly all prostate cancers are adenocarcinomas. This means that they started in gland cells in the prostate.

There are some other very rare types of prostate cancer which start in different cells. These include:

  • sarcoma
  • small cell carcinomas
  • neuroendocrine tumour
  • transitional cell cancer
  • squamous cell carcinoma.

Cancer stage

The stage of a cancer is how large it is and how far it has spread when it is first diagnosed.

The stage is determined from the results of scans, biopsies and other tests in a process known as staging.

Knowing the stage of a cancer helps doctors to work out the best treatment options. It also means the person with cancer can fully understand their situation and discuss any concerns they have.

There are different staging systems for different cancers. The most common ones are the TNM and numbered staging systems. Blood cancers have their own staging systems.

TNM system

The TNM system measures three categories:

  • T (tumour) – how large the tumour (cancer) is
  • N (lymph node) – whether it has spread into any of the surrounding nodes
  • M (metastasis) – whether it has spread to other parts of the body and formed secondary cancers.

Numbered staging system

The numbered system uses the TNM information to give a stage number to the cancer:

  • Stage 0 – abnormal cells are present but have not spread from where they started. It is also known as carcinoma-in-situ and may develop into cancer in the future.
  • Stage 1 – the cancer is small and has only spread a little into nearby tissues. It has not spread to any lymph nodes or other body areas.
  • Stage 2 and 3 – the cancer is larger or has spread into nearby tissues or lymph nodes.
  • Stage 4 – the cancer has spread to other areas of the body. This is also called metastatic cancer or advanced cancer.

Prostate cancer grade

The grade of a cancer is based on how abnormal the cells look under a microscope. Cancers with very abnormal cells are likely to grow and spread faster. 

The Gleason scoring system 

The Gleason scoring system has been used for many years to grade prostate cancers.

 A pathologist gives scores for how abnormal the cells look in two areas of the biopsy tissue. These two scores are added together to give the Gleason score.

The lowest Gleason score is 6 and the highest is 10. A higher Gleason score means the cancer cells are more abnormal.

Grade groups

This is a newer way of grading prostate cancer. It splits prostate cancers into Grade Groups 1 to 5. It is intended to be easier to understand than the Gleason score and more accurate at assessing how likely the cancer is to spread.

Cancers in Grade Group 1 are likely to grow very slowly, while those in Grade Group 5 can grow and spread quickly.

What to ask or talk about

Talking about prognosis

Prognosis means what is likely to happen to you in the future because of your cancer. You may find it hard to talk about prognosis but it can help you make decisions about the treatment and care you want.

Everyone’s cancer is different, and everyone responds differently to treatment. Because of this, doctors can’t tell you exactly what will happen to you. Instead, they can give you the best information they have about what to expect.

Doctors work out prognosis based on statistics. These show what happens in large groups of people with cancer. They cannot predict what will happen to you or any other individual person. 

Checklists

Use our checklists to find helpful tips or questions to ask.

Next steps

Treatment planning

Your specialist will share information about you and your cancer with a multidisciplinary team (MDT) to decide the best treatment options for you.

You may need more than one type of treatment or have a choice of treatments. You may also need to see other specialists during treatment planning.

Dealing with your diagnosis

Getting a cancer diagnosis is very distressing for the person with cancer, and their carers, family and friends. Different people react in different ways. They can be upset and angry or just in shock. Many people find it difficult to take in all the information and understand what it will mean for them.

The situation can be especially difficult for people who get a diagnosis of advanced cancer. 

If you need to speak to someone about your diagnosis, you can call the Cancer Council on 13 11 20.

Where to get help

There are people you can talk to for more information or support.

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