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A 32-year-old female asked:

would something thats radio-translucent show as black or white on x-ray?

2 doctor answers4 doctors weighed in
Dr. Michael Gabor
Diagnostic Radiology 33 years experience
Black.: For example, air in the lungs on a chest xray.
Dr. Sridhar Shankar
Specializes in Radiology
Black: An X-ray image is a negative. Bones stop X-rays to a much larger extent than soft tissues, and they're called radio-opaque. They appear white on X-ray. Soft tissues--muscles, viscera, etc., are Lucent to X-rays, which means X-rays can pass through them--appear black.

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Last updated Mar 16, 2021

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