Neurology Vignette

A 45-year-old man, shown in the video, comes to the emergency department with acute onset of double vision. Answers are below.

Sample Questions

1. A 45-year-old man, shown in the video, comes to the emergency department with acute onset of double vision. Which of the following is the localization of this patient’s deficit on examination?

  • Left pons
  • Right pons
  • Left medulla
  • Right medulla
  • Left facial nerve at stylomastoid foramen

2. Which of the following diagnoses is most likely in this patient?

  • Bell palsy
  • Lyme disease
  • Brainstem stroke
  • Wernicke encephalopathy
  • Middle cerebral artery infarction
Answers

1. Left pons

2. Brainstem stroke

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