#may2020mccqe1
A 5-year-old girl is brought to her pediatrician because her mother says she is frequently bumping into stationary objects while playing. Visual field examination shows bilateral peripheral vision defects. CT of the head reveals calcifications in the pituitary fossa. Which of the following is the most likely origin of this child’s brain tumor?
(A) Adenohypophyseal lactotrophs
(B) Fourth ventricle neuroectoderm
(C) Rathke’s pouch
(D) Vascular endothelium
(E) Ventricular lining
A 5-year-old girl is brought to her pediatrician because her mother says she is frequently bumping into stationary objects while playing. Visual field examination shows bilateral peripheral vision defects. CT of the head reveals calcifications in the pituitary fossa. Which of the following is the most likely origin of this child’s brain tumor?
(A) Adenohypophyseal lactotrophs
(B) Fourth ventricle neuroectoderm
(C) Rathke’s pouch
(D) Vascular endothelium
(E) Ventricular lining