A 4-Year-Old Child Is Brought to the Clinic Complaining of Headaches

A 4-year-old child is brought to the clinic complaining of headaches that have developed over the last month and are most intense when lying down. He has also been experiencing nonbloody, nonbilious emesis for the past two weeks, which usually happens early in the morning. Furthermore, the youngster experiences periodic fuzzy vision, especially while gazing up at the mirror when brushing his teeth. Bilateral papilledema, difficulty to glance upwards, and bilateral eyelid retraction are all seen on physical examination. Sodium, growth hormone, luteinizing hormone (LH) , and follicle-stimulating hormone (FSH) testing is routine. Given the emesis and papilledema in the early morning, a brain tumor is suspected, and an MRI is requested. Which of the following is the most likely site of the patient's brain lesion?

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