endocrine and metabolic disorders
Prolactinoma
Key Points
Galactorrhea is the most common sign of a prolactinoma. The most common cause of galactorrhea is a pituitary adenoma, but many drugs, and endocrine, hypothalamic, or other disorders may be responsible. Measure prolactin levels and do central nervous system imaging to detect a causative tumor. For microprolactinomas, give adopamineagonist if certain troublesome symptoms are present. For macroadenomas, give adopamineagonist and consider surgical ablation or sometimes radiation therapy when drugs fail to achieve treatment goals. 