Last Reviewed : 12/24/2020

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 too much prolactin in the blood (hyperprolactinemia), or those caused by pressure of the tumor on surrounding tissues..

Prolactin stimulates the breast to produce milk, and has many other functions such as regulation of mood. Hence prolactin levels are usually higher during pregnancy and after childbirth. After delivery of a baby, a mother's prolactin levels come down to normal a few weeks after breastfeeding is discontinued. Each time the milk is dispensed, prolactin levels rise; this process may cycle to maintain milk production. In males it is responsible for the sexual refractory period after orgasm and excess levels can lead to erectile dysfunction.

Based on size, a prolactinoma can be classified as a microprolactinoma (<10 mm diameter) or macroprolactinoma (>10 mm diameter).

We researched this topic for you and found the following best online resources. They are categorized into basic, advanced, and research level based on the extent of information you need. You will be taken to the respective websites by pressing on the links below.



Basic information: mayoclinic prolactinoma medline plus prolactinoma national institute for diabetes and digestive and kidney diseases prolactinoma new york times prolactinoma university of maryland medical center prolactinoma dove med prolactinoma


Advanced information: medscape prolactinoma patient prolactinoma patient hyperprolactinaemia and prolactinoma medicine prolactinoma (pituitary tumor) upto date patient information: high prolactin levels and prolactinomas (beyond the basics) healio middle-aged man diagnosed with giant invasive prolactinoma radiopedia pituitary macroadenoma - prolactinoma prolactinoma am fam physician. 2013 sep 1;88(5):online. symptoma prolactinoma



laway ba, mir sa. pregnancy and pituitary disorders: challenges in diagnosis and management. indian j endocr metab [serial online] 2013 [cited 2016 jul 16];17:996. available from: jyothi jsa, ramya p, chandra as, et al. multiplanar mri and ct imaging of sellar and parasellar tumourswith clinical and pathological correlation. j.evolution med.dent. sci. 2016;5(19):969-977,doi: 10.14260/jemds/2016/225

furtado sv, venkatesh pk, ghosal n, hegde as. coexisting intracranial tumors with pituitary adenomas: genetic association or coincidence?. j can res ther [serial online] 2010 [cited 2016 jul 16];6:221-3. available from: giant prolactinoma: case report and review of literature by masoud rahmanian et al., journal of diabetes & metabolic disorders201312:3 doi: 10.1186/2251-6581-12-3 mini review article front. endocrinol., 26 may 2015 | managing prolactinomas during pregnancy by mussa hussain almalki constantine l. karras, isaac josh abecassis, zachary a. abecassis, et al., “clival ectopic pituitary adenoma mimicking a chordoma: case report and review of the literature,” case reports in neurological medicine, vol. 2016, article id 8371697, 8 pages, 2016. doi:10.1155/2016/8371697

bhat mh, mushtaq s, saba s, saif r, ali g. cabergoline-induced tricuspid regurgitation: case report and review of literature. indian j endocr metab [serial online] 2011 [cited 2016 jul 16];15:137-9. available from: review article front. endocrinol., 31 may 2016 | human pituitary adenoma proteomics: new progresses and perspectives by xianquan zhan et al., case reports & case series (crp)a case of giant prolactinoma, initially misdiagnosed as sinonasal neuroendocrine carcinoma by yasaman mohtasebi, m.d et al., interdisciplinary neurosurgery volume 2, issue 3, september 2015, pages 126–128 doi:10.1016/j.inat.2015.05.001 elvis henrique santos andrade, pedro mario pan, paula f. ramalho da silva, and ary gadelha, “new insights in the management of antipsychotics in the treatment of schizophrenia in a patient with prolactinoma: a case report and review of the literature,” case reports in medicine, vol. 2010, article id 573252, 3 pages, 2010. doi:10.1155/2010/573252

chaurasia pk, singh d, meher s, saran r k, singh h. epistaxis as first clinical presentation in a child with giant prolactinoma: case report and review of literature. j pediatr neurosci [serial online] 2011 [cited 2016 jul 16];6:134-7. available from: arq bras endocrinol metab vol.58 no.2 são paulo mar. 2014 prolactinoma by andrea glezer prolactinoma in children and adolescents by fideleff h.l. boquete h.r. suárez m.g. azaretzky m. horm res 2009;72:197–205
(doi:10.1159/000236081) a case of giant prolactinoma, initially misdiagnosed as sinonasal neuroendocrine carcinoma by mohtasebi, yasaman et al.interdisciplinary neurosurgery: advanced techniques and case management , volume 2 , issue 3 , 126 - 128


Related topics: an ayurvedic interpretation and approach to the treatment of prolactin-secreting adenoma of the pituitary gland


Other helpful resources(support groups): the pitutary foundation prolactinoma support group


Related videos: prolactinoma - my story prolactinoma ¦ treatment and symptoms endonasal endoscopic prolactinoma surgery - updated version available what are prolactinomas? pituitary adenoma - prolactinoma - ttc prolactinoma update!


Presentations/quiz/newspaper articles: huffingtons post sue perkins’ brain tumour: here’s all you need to know about prolactinoma

Please leave your comments:

Related Articles