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Imaging findings of spontaneous intracranial hypotension
| Finding | Frequency (%) | Bern Score Points |
|---|---|---|
| Pachymeningeal thickening/enhancement | 70–80 | 2 |
| Venous sinus engorgement | 55–65 | 2 |
| Subdural collections | 35–50 | 1 |
| Pituitary enlargement | 40–60 | – |
| Brain sag | 30–40 | – |
| Narrow suprasellar cistern (< 4.0 mm) | – | 2 |
| Narrow prepontine cistern (< 5.0 mm) | – | 1 |
| Reduced mammilopontine distance (< 6.5 mm) | – | 1 |
