A case of normoprolactinemic galactorrhea following aneurysmal subarachnoid hemorrhage

Galactorrhea is most commonly associated with elevated levels of prolactin; however, it does happen in individuals whose prolactin level is within normal range. Galactorrhea has been reported after neurosurgical procedures, cranial trauma or cerebral hemorrhage affecting the hypothalamus, pituitary or pituitary stalk, but these were associated with elevated levels of prolactin. In our knowledge, there has not been a case reported wherein a patient developed normoprolactinemic galactorrhea after an aneurysmal subarachnoid hemorrhage. The etiology and pathophysiology of normoprolactinemic galactorrhea have not been distinctly defined making this entity a diagnostic and therapeutic challenge for physicians.