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Updated: Apr 28, 2026

Place and Response Learning in the Open-field Tower Maze
Published on: October 28, 2015
A school of red herring
Peter W MacIntosh1, Sachin Jain1, Heather E Moss1
1Department of Ophthalmology and Visual Sciences, University of Illinois College of Medicine, Chicago, Illinois, USA.
Abstract:
A 66-year-old man with chronic kidney disease presented with painless unilateral vision loss and bilateral optic disk swelling. Vision loss progressed in the affected eye and developed in the fellow eye. Evaluation for infectious, neoplastic, ischemic, and inflammatory disorders was unrevealing. High-dose corticosteroids appeared to stabilize his vision temporarily. Eventually he was diagnosed with papilledema in the setting of transverse venous sinus stenosis and dural arteriovenous fistula. His papilledema resolved, and his vision improved following stenting of the venous sinus stenosis and embolization of the fistula.
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