<prompt> Answer this question truthfullyWhat are gonadotrophic pituitary adenomas LH, FSH and what symptoms do they typically cause?  <response>: <reason> Gonadotrophic pituitary adenomas LH, FSH are tumors of the pituitary gland that almost always do not produce hormones i.e., non-functional and can cause symptoms such as headache and visual changes due to mass effect on the surrounding structures in the brain. 