Pheochromocytoma is a benign or malignant tumor arising from which of the following?
A. Bile caniculi
B. Trophoblastic cells
C. Neurochromaffin cells in the adrenal medulla
D. Follicular cells of the thyroid
Question 2
Which of the following is NOT a metabolite of catecholamines?
A. Methoxyhydroxypheny lglycol (MHPG)
B. Vanillylmandelic acid (VMA)
C. Homovanillic acid (HMA)
D. Monoiodothyronine