A 16-year-old boy is brought to the physician for a 4-month history of progressively worsening changes in his vision. He says he feels slightly “crowded” and has occasionally bumped into pillars in the bus station during busy commutes. Which of the following is the most likely embryologic etiology of this patient’s findings?
A) 2nd pharyngeal arch maturation
B) 3rd and 4th pharyngeal pouch migration
C) Ectoderm of anterior pituitary
D) Endoderm of foramen cecum
E) Roof of primitive oropharynx
