a noncancerous pituitary tumor that causes excess secretion of the hormone prolactin

a pituitary adenoma that produces large amounts of prolactin

a pituitary tumor that secretes prolactin

a prolactin-producing tumor of the pituitary gland

a prolactin-producing tumour of the pituitary gland

a prolactin secreting pituitary tumor

a tumor of the pituitary gland that produces an excess of prolactin

a tumor on the pituitary gland that produces too much

A prolactinoma is a benign tumor (adenoma) of the pituitary gland that produces a hormone called prolactin. It is the most common type of pituitary tumor. Symptoms of prolactinoma are caused by too much prolactin in the blood (hyperprolactinemia) or by pressure of the tumor on surrounding tissues.