Optic Disc Edema as the Initial Presentation of Bing–Neel Syndrome

A 54-year-old man with a history of Waldenstrom's macroglobulinemia (WM) presented with sudden-onset blurred vision in the left eye. This case will demonstrate a unique presentation of unilateral optic disc edema that stems from a patient's medical history of WM leading to a rare diagnosis of Bing-Neel Syndrome.