Focusing high-energy radiation beams onto specific organs or parts of
organs to treat cancer is called radiation therapy.
High-energy radiation breaks up the genetic material inside cancerous cells,
killing them and stopping their spread. Because radiation is delivered specifically
to the area of the cancer, effects on healthy cells are minimized. Doctors
with specialized training in the use of radiation to treat cancer are called radiation oncologists. They often work in conjunction with
medical oncologists, internal medicine doctors who specialize in medical treatments
for cancer. The September 14, 2005, issue of JAMA includes an article about
radiation therapy and its use in treating prostate cancer.