prolactinoma /pro·lac·ti·no·ma/ (-lak″tĭ-no´mah) a pituitary adenoma that secretes prolactin.
prolactinoma (prōˈ·lak·t
·nōˑ·m),
prolactinoma
prolactinoma (prōˈ·lak·t
·nōˑ·m),n a noncancerous tumor of the pituitary gland, most often in women, that leads to excess production of prolactin, the hormone responsible for modulating lactation. Also called
secreting adenoma.
secreting adenoma.
prolactinoma
Endocrinology A pituitary tumor more common in Pts < age 40 characterized by an excess secretion of prolactin–tumor size correlates with the prolactin level; smaller tumors, microprolactinomas, are more common in
♀; macroprolactinomas are more common in ♂ and associated with sexual dysfunction; women may become symptomatic while on OCs; menses may stop when OCs are discontinued; prolactinomas may grow during pregnancy and be diagnosed
postdelivery. See Prolactin.
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