The short answer
An "incidental finding" is something a scan picks up that wasn't the reason for the test — like a small spot found on a scan done for an unrelated problem. RadiologyInfo says many findings a radiologist sees are incidental and will cause you no harm. Doctors decide, based on the finding, whether it needs follow-up. It is not a diagnosis.
An incidental finding is an unexpected spot found while looking for something else.
Many are harmless, but your doctor decides whether any follow-up is needed.
Some are followed with a repeat scan to be sure nothing changes.
It's a finding to assess — not a diagnosis or cause for panic.
On this page
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The whole article, with every detail and caution.
This page is for people whose scan report mentions an incidental finding. It explains what the phrase means, why most are harmless, and how doctors decide on next steps.
Where you'll see this phrase
On a scan report this might read "incidental finding," "incidentally noted," or "of note." It means the radiologist saw something on your scan that was not the reason you had the scan.
Why they happen
A scan ordered for one reason can show something unrelated to why it was ordered. RadiologyInfo says many findings a radiologist sees on your scan are incidental and will cause you no harm.
What it does not mean
An incidental finding is not a diagnosis by itself. Being mentioned in the report does not tell you whether it matters. Only your care team, with the full picture, can say.
What determines the next step
Whether a finding needs follow-up depends on specifics, such as which organ it is in, how large it is, and what it looks like. Your doctor decides. RadiologyInfo says the impression section of the report is the most important part for you and your doctor, so ask your doctor to go over it with you.
Is this urgent?
Ask your doctor directly whether your finding needs prompt attention. If you have new or worsening symptoms, call your care team right away. If you have severe symptoms or think it is an emergency, call 911.
Keeping track across different doctors
Ask directly who is responsible for following up on the finding, and write that name down. If you change doctors, bring a copy of the report. If you have questions your doctor cannot answer, RadiologyInfo suggests talking to your facility's imaging staff.
What to ask your team
- What organ was the incidental finding in, and how large is it?
- Does it have features that make it more or less likely to matter?
- Is any follow-up needed, and if so, when?
- Does this need prompt attention?
Sources
Common questions
Should an incidental finding worry me?
Many incidental findings cause no harm, but each one needs to be looked at by your doctor. Ask your care team what was found and whether follow-up is needed.
Why follow up on something harmless?
Some findings need a closer look to be sure they are not important. Your doctor decides whether a repeat scan or other test is needed.
Questions to ask your doctor
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More words from this kind of report
Other guides in scan & imaging reports.
Your next step
Plain-language definitions for the words on your report.
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Last updated: 2026-10-16Next planned review: 2027-07-12
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Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes, and this is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Source checked — This page was written with AI assistance and then compared with the sources listed on it, looking for statements those sources do not back up. That check is not a sentence-by-sentence record and can miss errors. It is not a medical review, and it does not confirm the page is complete or right for your situation.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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