For Patients

Columbia, Missouri

We provide the full scope of care for the early detection and treatment of prostate cancer

Radiation Therapy

Radiation therapy uses high-energy rays to kill prostate cancer cells. Because the rays cannot be directed perfectly, they may damage both cancer cells and nearby healthy cells. If the dose of radiation is small and spread over time, the healthy cells are able to recover and survive, and the cancer cells eventually die.

Radiation therapy usually is given for prostate cancer that has not spread to distant areas of the body. Like surgery, this therapy works best when the cancer is located in a small area.


With this outpatient procedure, small radioactive pellets (called seeds—which are the size of a grain of rice) are directly implanted into the prostate where they irradiate the cancer from inside the gland. They are so small they cause no mechanical discomfort and are left in place. Most men return to normal activities in just a few days.


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