A 4-Year-Old Boy Is Brought to the Office Due to Headaches

A 4-year-old boy is brought to the office due to headaches that have worsened progressively over the past month and are most severe when lying down.  He also has had nonbloody, nonbilious emesis for 2 weeks that typically occurs early in the morning.  In addition, the child has intermittent blurry vision, particularly when looking up at the mirror while brushing his teeth.  Physical examination shows bilateral papilledema, inability to gaze upwards, and bilateral eyelid retraction.  Laboratory testing of sodium, growth hormone, luteinizing hormone (LH) , and follicle-stimulating hormone (FSH) is normal.  Given the early morning emesis and papilledema, a brain mass is suspected and a brain MRI is ordered.  Which of the following is the most likely location of the brain lesion in this patient?

A) A
B) B
C) C
D) D
E) E
F) F

Correct Answer:

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