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A 47-year-old member asked:

What is the difference between radiography and radiation therapy for cancer?

2 doctor answers8 doctors weighed in
Dr. Carlo Contreras
A Verified Doctoranswered
A US doctor answeredLearn more
Diagnose vs treat: Radiography means using x-ray beams to create an image that helps diagnose diseases including cancer. Chest x-rays and ct scans are common examples. Radiation therapy uses much higher powered radiation beams that are focused on cancer tumors. These radiation beams are designed to kill the cancer cells.
Dr. Andrew Turrisi
Radiation Oncology 47 years experience
Imaging includes U/S, MRI, nuclear medicine none of which use x-rays and a better term than the Europen "radiography"...And radiation therapy can be used curatively or palliatively, but we need the imaging to define ports to treat and evaluate results.
May 8, 2012
Dr. Brian Lawenda
Radiation Oncology 24 years experience
Diagnostic vs Treat: Radiology (uses radiography) to diagnose and evaluate the tissues and organs in the body. Radiation therapy uses radiation to treat cancers (and occasionally benign conditions.).

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A 41-year-old member asked:

Can radiation therapy cause cancer?

1 doctor answer3 doctors weighed in
Dr. Ramji Rajendran
Radiation Oncology 16 years experience
Secondary Cancer: Radiation does cause cancer, but is also used to treat cancer in radiation oncology. The best data for this is from children treated with radiation and followed closely for many years. The data can be murky with other causes of cancer. However, in general, the risk of secondary malignancy is much less than 1% can take up to 20 years to develop. The benefit of radiation far outweighs this risk.

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Last updated May 17, 2014
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