Answer: You astutely note optic disc swelling in the left eye.
You order an MRI brain and orbits. A few of the images are shown below:
The radiology report reads: “MRI Brain: Multiple non-enhancing foci of FLAIR hyperintensity, predominantly in the periventricular regions. Thickening and enhancement along the visualized course of the left optic nerve.”
What’s the most likely diagnosis? Pick 1 before scrolling down.
Demyelinating optic neuritis
Acute ischemic optic neuropathy
Idiopathic intracranial hypertension
Migraine with aura
What underlying condition most likely led to this acute presentation? Pick 1 before moving on.