Impression
Read Your Scan Editorial Team·Last updated
Written from published radiology references and reviewed for plain language. Not written or signed by a physician, and not a diagnosis. How we write these pages →
In plain language
The conclusion — the radiologist's summary of what matters, usually a few numbered lines at the end. If you read one part of a report, read this one: the findings section describes everything seen, the impression says what it adds up to.
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Where you'll see this
The final section of almost every radiology report, on every modality.
Your report may word it “Conclusion”, “Opinion” or “Summary”. These mean the same thing.
Questions worth asking your doctor
- Which part of this report is the conclusion I should focus on?
- Was the question my doctor asked actually answered by this scan?
- Is there an earlier report or addendum I should be reading alongside this one?
How often does this turn up?
The impression is the closing section of a radiology report and the only part written to be acted on. It appears on every report and is usually short — sometimes a single line. Everything before it describes; this part concludes. If you read one section of your report, this is the one.
Does it mean something is wrong?
This is where the radiologist commits. The findings section is a flat, exhaustive description in anatomical order; the impression is a prioritised judgement about what those findings mean and what should happen. So it is the right place to look for how concerned to be — and equally, an impression that reads as unremarkable is a stronger reassurance than any amount of alarming-sounding detail earlier in the report. Where a radiologist wants something done urgently, this is where they say so, and usually they telephone as well rather than rely on the document.
What to do with it
The impression often names the next step explicitly: a follow-up interval, another test, or a recommendation to correlate clinically. That last phrase is not a hedge but a handover — it means the images have been described and the judgement about what they mean for you belongs to the doctor who can examine you. Reading the impression and bringing one question about it to your appointment is the single most useful thing to do with a report.
Frequently asked questions
- What is the difference between findings and impression?
- Findings describe everything seen, structure by structure and in anatomical order, including much that is normal. The impression is the radiologist’s conclusion: short, prioritised and written for the referring doctor to act on.
- What if the impression says nothing significant?
- That is the result. The radiologist has weighed everything in the findings and concluded there is nothing to act on. It carries more weight than any individual sentence earlier in the report.
- Why does the impression sometimes contradict how the findings read?
- It does not contradict them so much as rank them. The findings mention everything visible, including ordinary age-related changes; the impression filters that down to what matters clinically. Alarming-sounding findings with a bland impression is a very common and reassuring combination.
Parts of a report
Where this word comes up
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