Question 4

(Multiple Choice)

Secondary hyperthyroidism due to a pituitary tumor would be associated with the following histophysiological characteristics of the thyroid gland (in relation to normal):


A)Increased iodine uptake at 24 hours
B)Increased colloid
C)Tall columnar thyroid epithelium
D)Decreased thyroglobulin endocytosis
E)Lowered organification of iodide

Answer