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A member asked:
Incidental low attenuation lesion" found in kidney. 7mm in size. what does "low attenuation" mean?
A doctor has provided 1 answer
Low attenuation: means it absorbs less xrays. Usually this means that it is something less dense than adjacent tissue. For example, a fluid filled structure(such as a cyst) has lower attenuation than a solid mass. In the kidney, an incidental low attenuation lesion usually indicates a benign cyst. This can be confirmed with an ultrasound.
Answered 3/14/2020
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