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Radiotherapy

Planning radiotherapy for penile cancer

The radiotherapy team plan your external radiotherapy before you start treatment. This means working out the dose of radiotherapy you need and exactly where you need it.

Planning appointment

Your planning appointment takes from 15 minutes to 2 hours.

You usually have a planning CT scan in the radiotherapy department.

The scan shows the cancer and the area around it. You might have other types of scans or x-rays to help your treatment team plan your radiotherapy. The plan they create is just for you.

Photo of a CT scanner.

Ink and tattoo marks

The radiographers might make pin point sized tattoo marks on your skin. They use these marks to line you up into the same position every day. The tattoos make sure they treat exactly the same area for all of your treatments. They may also draw marks around the tattoos with a permanent ink pen, so that they are clear to see when the lights are low.

Photograph of radiotherapy tattoo marks.

The radiotherapy staff tell you how to look after the markings. The pen marks might start to rub off in time, but the tattoos won’t. Tell your radiographer if that happens. Don't try to redraw them yourself.

After your planning session

You might have to wait a few days or up to 3 weeks before you start treatment.

During this time the physicists and your radiotherapy doctor (clinical oncologist) decide the final details of your radiotherapy plan. They make sure that the area of the cancer will receive a high dose and nearby areas receive a low dose. This reduces the side effects you might get during and after treatment. 

Find out what happens in your radiotherapy treatment sessions

Last reviewed: 26 Feb 2024

Next review due: 26 Feb 2027

External radiotherapy for penille cancer

You usually have external radiotherapy for penile cancer as an outpatient each weekday over 4 to 6 weeks.

Internal radiotherapy for penile cancer

Internal radiotherapy means giving radiotherapy to the cancer from inside the penis. It is also called brachytherapy.

Penile cancer treatment

Treatments for penile cancer include surgery, chemotherapy and radiotherapy. The treatment you have depends on the stage and type of your penile cancer.

Side effects of radiotherapy for penile cancer

Side effects from radiotherapy tend to start a few days after the treatment begins. Side effects might include sore skin or swelling.

Penile cancer main page

Penile cancer is cancer of the penis. It can develop anywhere on the penis but is most common under the foreskin in men who haven’t been circumcised or on the head of the penis (the glans).

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