Prolactinoma manifesting with symptomatic hydrocephalus.

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