A 40-year-old Hispanic man with an unremarkable medical history presented to the emergency department with sudden onset swelling of and loss of vision in the left eye. His symptoms had initially developed 3 months before his presentation and were considered to have been the result of a possible infection of the orbital muscle and associated inflammation. He had symptomatic improvement after steroid treatment. However, he began to notice increasing left nasal congestion, double vision, and facial numbness after discontinuation of steroids.
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