Which is the most common cell involved in non-functioning pituitary adenoma?: (A) Gonadotropin producing cell, (B) Prolactin producing cell, (C) GH producing cell, (D) TSH producing cell
Answer is A. A majority of pituitary adenomas are clinically non-functioning and produce no distinct clinical hyper-secretory syndrome. Some of them arise from gonadotrope cells and may secrete intact circulating gonadotropins. most common cell involved in Non-functioning pituitary adenoma is Gonadotropin producing cell. The most common Secretory adenoma is Prolactinoma. The least common secretory adenoma is TSH secreting tumor.