Figure 1.

MRI findings, fundoscopic findings, and visual fields of the presented case. (A) Fundoscopic examination on the first hospitalization showed bilateral papilledema. (B) Fundoscopic examination on the second hospitalization revealed bilateral optic atrophy, which was probably caused by bilateral papilledema. (C,D) Visual fields on the first and second hospitalizations showed bilateral enlargement of the physiological blind spot without any other visual field defect. (E–G) Brain MRI exhibited several imaging signs of intracranial hypertension, including the empty-sella sign (E), perioptic subarachnoid space distension (F,G), optic nerve tortuosity (G), and posterior globe flattening (F,G). (H) Brain MRI with contrast showed no enhancement of the optic nerve. (I,J) Post-contrast 3D GRE T1-weighted imaging and contrast-enhanced magnetic resonance venography (CE-MRV) showed filling defects of the right transverse-sigmoid sinus. (K,L) Brain MRI and CE-MRV after 3 months of anticoagulation showed partial recanalization of the right transverse-sigmoid sinus.