Wednesday 8 June 2011

MCQ 19

Which of the following is the most common type of pituitary adenoma?

a. Thyrotropinoma
b. Gonadotropinoma
c. Prolactinoma
d. Corticotropinoma.

Answer
Answer is 'c'.
Prolactinomas are the most frequent type of hyperfunctioning pituitary adenomas, accounting for about 30% of all clinically recognized pituitary  adenomas.
Growth hormone secreting tumours are the second most common type of functioning pituitary adenoma.

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