Why it's done

Proton therapy is used as a treatment for cancer and some noncancerous tumors. Proton therapy may be used as the only treatment for your condition. Or it may be used in conjunction with other treatments, such as surgery and chemotherapy.

Proton therapy is sometimes used to treat certain conditions, such as:

  • Brain tumors
  • Cancer in children
  • Eye melanoma
  • Head and neck cancers
  • Liver cancer
  • Lung cancer
  • Pituitary gland tumors
  • Prostate cancer
  • Tumors affecting the spine
  • Tumors in the base of the skull

Clinical trials are investigating proton therapy as a treatment for other cancers, such as:

  • Anal cancer
  • Bladder cancer
  • Breast cancer
  • Cervical cancer
  • Esophageal cancer
  • Lymphoma
  • Pancreatic cancer
  • Soft tissue sarcoma