Demyelinating Diseases USMLE Step 1 Practice Question
A 34-year-old woman presents with sudden vision loss in her right eye over 2 days. She describes pain with eye movement and a central scotoma on visual field testing. Ophthalmoscopy shows a normal-appearing optic disc. She has a history of intermittent leg weakness 2 years ago that resolved spontaneously. MRI shows T2 hyperintense lesion in the optic nerve. Which of the following is the most likely diagnosis?
Answer choices
- AMultiple sclerosisCorrect answer
- BArteritic anterior ischemic optic neuropathy
- CNeuromyelitis optica spectrum disorder
- DCentral retinal artery occlusion
- ELeber hereditary optic neuropathy
- FNeurosarcoidosis with granulomatous optic nerve infiltration
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