Hyperintense is an MRI term describing tissue that appears brighter than expected on a particular MRI sequence (T1, T2, FLAIR, or DWI).
It is an imaging finding, not a symptom. The clinical picture depends on the underlying problem.
The meaning of hyperintensity depends on the sequence — bright on T2 may suggest fluid, inflammation, or oedema; bright on T1 may suggest fat, blood, or protein; bright on DWI may suggest acute stroke or abscess.
Interpreting hyperintensity always requires the sequence, the location, the pattern, and the clinical history together.
Management is driven by the underlying condition the bright signal represents, not by the brightness itself.
This entry explains the word. If it appeared on your report, the next step is getting that report interpreted for your case.