What's the different between "finding" and "impression" on the mri report?

Quite different : Finding describes the images and what you see. Describes a muscle tear or little white spots in the brain. The impression should say all those findings mean

"Findings" are: a list of abnormalities or pertinent normal observations made by the radiologist. The "impression" is a summary of the important findings, possibly adding the radiologist's opinion of what the findings might mean, and recommendations for next steps.

Play of word: Usually finding leads to impression as per the reader's professional experience/knowledge.