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Radiotherapy uses high energy rays to destroy cancer cells. You usually have radiotherapy to help control symptoms caused by cancer of unknown primary (CUP).

Planning radiotherapy

You have a planning session with your radiotherapy team a few days or weeks before you start treatment. Find out what to expect.

Having radiotherapy for cancer of unknown primary (CUP)

Find out how you have radiotherapy for cancer of unknown primary (CUP), and the common side effects.

Last reviewed: 
29 May 2020
Coronavirus and cancer

We know it’s a worrying time for people with cancer, we have information to help.

Read our information about coronavirus and cancer