MSD Manual

Please confirm that you are a health care professional

honeypot link

Radiation Therapy

By

Jimmy C. Lattimer

, DVM, MS, DACVR, DACVRO, Veterinary Medicine and Surgery, Veterinary Medical Teaching Hospital, University of Missouri

Last full review/revision Oct 2019 | Content last modified Nov 2019

Although not a test or imaging procedure, radiation therapy is discussed here because, like several imaging techniques, it uses ionizing radiation and is typically done under the direction of a veterinary radiologist. In veterinary practice, this treatment is very similar to the radiation therapy used in many human cancer patients.

Radiation therapy Radiation Therapy Your veterinarian has several options for treating pets with neoplasia. There are 3 common treatment options for animal cancer and tumor: surgery, chemotherapy, and radiation therapy (also called... read more can help to control the growth of cancerous (malignant) tumor cells. With this treatment, a linear accelerator is used to produce powerful x‑rays and electron beams that are carefully aimed at cancerous growths. The most frequent targets are deep-seated tumors and tumors of the skin and the tissues immediately below the skin.

Computerized treatment planning systems are used to ensure the greatest benefit from the radiation therapy. With these tools the dose to the tumor tissue is maximized and the damage to the surrounding normal tissue is kept as small as possible.

Whenever possible, removal of a tumor by surgery is preferred. However, it is often not possible to remove all of the tumor tissue. In these cases, radiation therapy is useful in treating the remaining cancerous tissue. This treatment is frequently combined with chemotherapy. Radiation therapy is often the treatment of choice for brain tumors, nasal tumors, and other cancers of the head and neck.

If your pet has radiation therapy, either with or without chemotherapy, there are a number of things you should know in order to provide the most supportive environment. It is common for pets undergoing radiation therapy to be more tired than normal and they may need a special diet. Ask your veterinarian for detailed instructions about what you need to do to support your pet during radiation therapy.

For More Information

Others also read
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Download the Manuals App iOS ANDROID
Test your knowledge
Neoplasia of the Eye and Associated Structures
Squamous cell carcinoma is a common neoplasm in several species. Ocular squamous cell carcinoma is most common in animals with light pigmentation around the eyes, because sun exposure is one of several predisposing factors. This tumor is common in each of the following species EXCEPT:
Become a Pro at using our website 

Also of Interest

Become a Pro at using our website 
TOP