Prolactinoma manifesting with symptomatic hydrocephalus

Prolactinomas are the most common secretory adenomas of pituitary origin. T hey typically manifest with symptoms referable to their endocrinologic effe cts or, if of sufficient size, to visual changes due to compression of the optic chiasm, Pituitary adenomas manifesting with hydrocephalus are rare. T o our knowledge, only three such cases have previously been reported. We de scribe an 81-year-old woman with a pituitary adenoma that manifested with h ydrocephalus, In addition, we review the literature and discuss therapeutic options.