Planning radiotherapy for penile cancer

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

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
Radiotherapy treatment area 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 radiographer 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. 

Last reviewed: 
04 Feb 2021
Next review due: 
04 Feb 2024
  • Penile carcinoma: ESMO clinical practice guidelines

    HN Van Poppel and others

    Annals of Oncology, 2013. Volume 24, Supplement 6

  • Supranetwork MDT for Penile Cancer Guidelines

    University College Hospitals NHS Trust (2016)

  • Contemporary role of radiotherapy in the management of penile cancer

    M Korzeniowski and J Cook 

    Translational Andrology and Urology, 2017. Volume 6, Issue 5

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