A lady with amenorrhea and galactorrhea, what is the cause of this?: (A) Pituitary adenoma, (B) Adrenal hyperplasia, (C) 70 alpha hydroxylase deficiency, (D) None of above
Answer is A. In patients with both galactorrhea and amenorrhea, approximately two-thirds will have hyperprolactinemia; of those, approximately one-third will have a pituitary adenoma. A prolactin level as high as 150-200 ng/mL is almost always due to a pituitary adenoma.