Brain MRI showing features suggestive of intracranial hypotension

(A) Sagittal post-contrast T1-weighted image shows diffuse pachymeningeal enhancement (thick arrows), pituitary enlargement (arrowhead), and distended venous sinus (arrow).

(B) Axial T2-weighted image shows lateral compression of the midbrain with increased anteroposterior diameter (short arrow) and paucity of fluid in the perioptic nerve sheaths (circle).