If you've been diagnosed with cancer, your doctor may suggest you get radiation therapy. It's a common treatment that shrinks tumors and kills cancer cells -- and might be the only one you need to ...

External-beam radiation therapy (EBRT) is a treatment where radiation beams come from a source outside the body. Usually, it comes from a machine called a linear accelerator (also called a LINAC).

There are several different types of radiation therapy. The type that may be recommended for you depends on a variety of factors, such as your cancer, its stage, and your treatment goals. Radiation ...

Computed tomography -- also known as computed axial tomography, a CT scan, or a CAT scan -- is a tool doctors use to diagnose many types of health problems. Special X-ray equipment creates images of ...

Radiation is energy that moves from one place to another in a form that can be described as waves or particles. We are exposed to radiation in our everyday life. Some of the most familiar sources of ...

Radiation therapy uses high-energy rays to destroy cancerous cells. Doctors may recommend a combination of radiation therapy and chemotherapy to treat esophageal cancer. Radiation therapy uses ...

Chemotherapy uses medications taken by mouth or infused into a vein or port. It travels through the bloodstream to kill cancer cells throughout the body. Radiation therapy targets one area by aiming ...