A woman in her 30s was referred for evaluation of bilateral papilledema and progressive visual loss in the right eye, which deteriorated to blindness in 3 months. She denied any other neurologic symptoms, such as headache, nausea, vomiting, seizures, and paresis. She had a 4-year history of Behçet disease (BD), and her condition had been stabilized with thalidomide. Her optic neuropathy of BD had been treated with high-dose intravenous methylprednisolone for 4 days followed by oral prednisone for a month without improvement.Her best-corrected visual acuity was no light perception OD and 20/20 OS. Intraocular pressure was 21 mm Hg OD and 19 mm Hg OS. Fundus examination revealed papilledema in both eyes (Figure 1A). No obvious sign of optic disc ischemia or active uveitis was observed by fundus fluorescein angiography bilaterally. Humphrey visual fields showed complete visual field loss in the right eye and peripheral visual field defects in the left eye. Her anterior segment was normal in both eyes except for relative afferent pupillary defect in the right eye. Cranial nerve examination was otherwise unremarkable. Magnetic resonance imaging of the brain showed no remarkable abnormalities except for partially empty sella (Figure 1B). She had normal blood pressure levels. Results of laboratory testing regarding systemic infection were negative, and her serum D-dimer level was normal.
Diagnosis
Cerebral venous thrombosis
What to Do Next
C. Obtain cerebral magnetic resonance venography or computed tomographic venographyClinical Review & Education