A 36-year-old man had noticed a dark spot in the field of vision of his left eye. A complete workup was unremarkable except for an elevated C-reactive protein level and a mild prominence of the left hilum on his chest radiograph. Examination of the optic discs through dilated pupils revealed bilateral papilledema, more prominent at the nasal disc margins. A transbronchial biopsy demonstrated non-necrotizing granulomas, which confirmed a diagnosis of neurosarcoidosis.
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