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Old 09-21-2011
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Default afraid to drive

A 34-year-old male presents to your clinic complaining of a headache and poor vision. The patient has recently been in 3 car accidents and is now afraid to drive because for each of those accidents he "never saw the other car coming". His physical exam is significant for gynecomastia and bitemporal hemianopsia. MRI reveals a pituitary mass. You explain that the likely reason for his poor peripheral vision is:
  • A. Mass effect on CN V
  • B. Mass effect on CN VII
  • C. Mass effect on CN II
  • D. Mass effect on CN III
  • E. Mass effect on CN IV
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Old 09-21-2011
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C- Optic nerve.
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Old 09-21-2011
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C. Mass effect on CN II
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Old 09-21-2011
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Answer is C
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it is a mass effect on cranial nerve 2 which is optic nerve
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