Course: An Atypical Optic Nerve Head Mass
CME Credits: 1.00
Released: 2024-02-01
A 47-year-old man presented to our clinic with a sudden decrease in vision in the right eye. One month prior, he had presented to the emergency department with binocular diplopia, bilateral cranial nerve 6 palsies, and an undifferentiated pontine mass on brain magnetic resonance imaging. Broad serologic workup results were negative, except for a positive syphilis total antibody with a nonreactive rapid plasma reagin test. Lumbar puncture with flow cytometry and cerebrospinal fluid venereal disease research laboratory test (CSF VDRL) result was also negative. The patient reported a history of syphilis treated with intramuscular penicillin 9 years prior. He was treated with systemic corticosteroids and discharged home on a steroid taper.
Educational Objective
Based on this clinical scenario and the accompanying image, understand how to arrive at a correct diagnosis.
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