Radiation Therapy

Your healthcare team may recommend radiation therapy as part of your treatment plan. This section provides descriptions of radiation therapy and links to additional resources that you can review and consult.

Radiation Therapy: How It Works

Radiation therapy uses high-energy particles or waves (such as x-rays, gamma rays, electron beams, or protons) to destroy or damage cancer cells. It’s also used to shrink tumors, and sometimes to alleviate, or lessen, cancer-related symptoms.

Radiation therapy is often used in combination with chemotherapy. It may also be used with surgery.

External beam radiation therapy is the type most often used for exocrine pancreatic cancers (the most common type of pancreatic cancer). With external beam radiation, the radiation is given by a machine outside the body onto cancerous cells within the body.

For an overview about external beam radiation therapy for pancreatic cancer, visit cancer.org, the website of the American Cancer Society.

Read more at cancer.org This link is to a third-party website.

For an in-depth discussion of external beam radiation therapy, visit cancer.org, the website of the American Cancer Society.

Radiation Therapy: Preparing for Treatment

Your healthcare team will provide you with specific details for preparing for the radiation therapy in your treatment plan.

In general, for external beam radiation therapy, you should wear loose-fitting, comfortable clothes and make sure you don’t have any powder, deodorant, jewelry, or adhesive bandages near your treatment area.

Treatments are usually given five days in a row, usually Monday through Friday, for a number of weeks. Treatment time may be just a few minutes. The setup time for each treatment, however, may take longer. Also, a few days before starting radiation therapy, the doctor will pinpoint the area to be treated.

For more information about external beam radiation therapy, including the planning and a description of what happens during a treatment session, visit cancer .org, the website of the American Cancer Society.

Radiation Therapy: Possible Side Effects

Radiation therapy can damage both cancer and other cells in the body and cause side effects.

Some possible side effects from external beam radiation therapy include:

  • Fatigue
  • Mild skin reaction
  • Nausea
  • Vomiting
  • Loose bowel movements
  • Poor appetite
  • Weight loss

Side effects may vary depending on the individual and the part of the body receiving radiation. Most side effects go away soon after treatment is finished.

Ask your healthcare team about palliative care to help you manage any side effects and maintain the quality of your life.

For more information about possible radiation therapy side effects, visit cancer.org, the website of the American Cancer Society.

Read more at cancer.org This link is to a third-party website.

Glossary of Radiation Therapy Terms

While learning about radiation therapy, you may come across or hear a variety of unfamiliar terms.

To learn more about radiation therapy terms, visit cancer.org, the website of the American Cancer Society