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Review Question - QID 101917

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QID 101917 (Type "101917" in App Search)
A 13-year-old male presents to his pediatrician complaining of headaches and difficulty with his vision. Physical exam reveals weight in the 50th percentile but height in the 25th percentile. Previously, he had consistently measured in the 50th percentile for both height and weight. Vital signs are within normal limits. Visual testing reveals 20/30 vision with temporal field defects on both the left and the right. Head CT reveals the lesion seen in Figure A. A biopsy is performed (Figure B). The lesion is derived from the remnants of a pouch that is the embryonic precursor to which structure in the brain?
  • A
  • B
  • A
  • B