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A 37-year-old man presents with visual impairment. Examination reveals a bitemporal hemianopsia. Which of the following tumors is most likely responsible for this finding?
a.    Optic glioma

b.    Occipital astrocytoma

c.    Brainstem glioma

d.    Pituitary adenoma

e.    Sphenoid wing meningioma
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1 Answer

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d.    Pituitary adenoma

Explanation: Pressure on the optic chiasm.