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Table 3: Brain MRI findings in patients with skull base CSF leaks
MRI Findings # Patients (%) n = 31
Dural enhancement 1 (3%)
Small suprasellar distance (≤4 mm) 2 (7%)
Engorged venous sinus 1 (3%)
Subdural fluid collection 0
Small prepontine distance (≤5 mm) 10 (32%)
Small mamillopontine distance (≤6.5 mm) 9 (29%)
Mean Bern score (SD) 0.9 (1.1)
Lowlying cerebellar tonsils 2 (7%)