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macroprolactinoma

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https://www.readbyqxmd.com/read/29768629/controversial-issues-in-the-management-of-hyperprolactinemia-and-prolactinomas-an-overview-by-the-neuroendocrinology-department-of-the-brazilian-society-of-endocrinology-and-metabolism
#1
Lucio Vilar, Julio Abucham, José Luciano Albuquerque, Luiz Antônio Araujo, Monalisa F Azevedo, Cesar Luiz Boguszewski, Luiz Augusto Casulari, Malebranche B C Cunha Neto, Mauro A Czepielewski, Felipe H G Duarte, Manuel Dos S Faria, Monica R Gadelha, Heraldo M Garmes, Andrea Glezer, Maria Helane Gurgel, Raquel S Jallad, Manoel Martins, Paulo A C Miranda, Renan M Montenegro, Nina R C Musolino, Luciana A Naves, Antônio Ribeiro-Oliveira Júnior, Cíntia M S Silva, Camila Viecceli, Marcello D Bronstein
Prolactinomas are the most common pituitary adenomas (approximately 40% of cases), and they represent an important cause of hypogonadism and infertility in both sexes. The magnitude of prolactin (PRL) elevation can be useful in determining the etiology of hyperprolactinemia. Indeed, PRL levels > 250 ng/mL are highly suggestive of the presence of a prolactinoma. In contrast, most patients with stalk dysfunction, drug-induced hyperprolactinemia or systemic diseases present with PRL levels < 100 ng/mL. However, exceptions to these rules are not rare...
March 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29660734/interpretation-of-serum-gonadotropin-levels-in-hyperprolactinemia
#2
Ali Abbara, Sophie A Clarke, Alexander Nesbitt, Sabreen Ali, Alexander N Comninos, Emma Hatfield, Niamh Martin, Amir Sam, Karim Meeran, Waljit S Dhillo
<br>Background/Aims: Hyperprolactinemia is a common cause of amenorrhea due to hypogonadotropic hypogonadism. Prolactin is hypothesized to impede the reproductive axis through an inhibitory action at the hypothalamus. However, limited data exists to aid the interpretation of serum gonadotropins in the context of hyperprolactinemia. METHODS: Serum gonadotropin values were reviewed in 243 patients with elevated serum monomeric prolactin due to discrete etiologies at a tertiary reproductive endocrine centre between 2012 and 2015...
April 16, 2018: Neuroendocrinology
https://www.readbyqxmd.com/read/29498601/edema-of-the-optic-tract-in-patients-with-tumors-of-the-sellar-region-clinical-and-visual-implications-in-the-pediatric-population
#3
Aurore Bussat, Maia Proisy, Bertrand Bruneau, Guillaume Bouzillé, Céline Chappé, Laurent Riffaud
OBJECTIVE Tumor-related edema of the optic tract (EOT) corresponds to a preferential posterior distribution of peritumoral edema along the white matter tract of the visual system. To date, the consequences of EOT have never been evaluated specifically in the pediatric population. In this study, the authors attempted to identify clinical and radiological features associated with the development of EOT and the specific influence of this edema on visual function. METHODS A retrospective review was performed of data collected from patients younger than 18 years who underwent surgery for a tumor in the sellar region at the authors' institution between January 2005 and January 2016...
May 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29492132/pituitary-apoplexy-during-treatment-of-prolactinoma-with-cabergoline
#4
Hesam Ghadirian, Mohamad Shirani, Shahab Ghazi-Mirsaeed, Saleh Mohebi, Maysam Alimohamadi
Pituitary apoplexy is a rare clinical presentation caused by infarction of the pituitary gland or adenoma with or without hemorrhage. Although pituitary apoplexy is usually spontaneous, one of the predisposing factors is treatment with dopamine agonists, especially bromocriptine. The occurrence of apoplexy during cabergoline therapy is reported much less frequently. In this article, we report a 34-year-old man with macroprolactinomas who developed sudden visual deterioration due to pituitary apoplexy 1 year after initiation of cabergoline therapy...
January 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29467589/cabergoline-induced-pneumocephalus-following-treatment-for-giant-invasive-macroprolactinoma-presenting-with-spontaneous-cerebrospinal-fluid-rhinorrhea
#5
Souha S Elabd, Maswood M Ahmad, Sameer Q Qetab, Mussa Hussain Almalki
Cerebrospinal fluid (CSF) rhinorrhea is rarely reported as the first presenting feature of giant invasive macroprolactinomas. Cerebrospinal fluid rhinorrhea is usually reported as a complication of trauma, neurosurgical, and skull-based procedures (such as pituitary surgery or radiations), and less frequently after medical treatment with dopamine agonists (DAs) for macroprolactinomas. This phenomenon results from fistula creation that communicates between the subarachnoid space and the nasal cavity. Meanwhile, pneumocephalus is another well-recognized complication after transsphenoidal surgery for pituitary macroadenomas...
2018: Clinical Medicine Insights. Endocrinology and Diabetes
https://www.readbyqxmd.com/read/29464061/natural-and-molecular-history-of-prolactinoma-insights-from-a-prlr-mouse-model
#6
Valérie Bernard, Chiara Villa, Aurélie Auguste, Sophie Lamothe, Anne Guillou, Agnès Martin, Sandrine Caburet, Jacques Young, Reiner A Veitia, Nadine Binart
Lactotroph adenoma, also called prolactinoma, is the most common pituitary tumor but little is known about its pathogenesis. Mouse models of prolactinoma can be useful to better understand molecular mechanisms involved in abnormal lactotroph cell proliferation and secretion. We have previously developed a prolactin receptor deficient ( Prlr -/- ) mouse, which develops prolactinoma. The present study aims to explore the natural history of prolactinoma formation in Prlr -/- mice, using hormonal, radiological, histological and molecular analyses to uncover mechanisms involved in lactotroph adenoma development...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29455199/clinical-features-and-response-to-treatment-of-prolactinomas-in-children-and-adolescents-a-retrospective-single-centre-analysis-and-review-of-the-literature
#7
Thomas Breil, Catherine Lorz, Daniela Choukair, Janna Mittnacht, Ioana Inta, Daniela Klose, Jessica Jesser, Egbert Schulze, Markus Bettendorf
BACKGROUND: Paediatric prolactinomas are rare. The aim of this study was to investigate the clinical features and outcome of paediatric patients with prolactinomas. METHODS: In this single-centre retrospective analysis, clinical, biochemical, and radiological features of all paediatric patients with pituitary adenomas diagnosed between 2000 and 2016 were evaluated. RESULTS: Among 21 patients with pituitary adenomas, 12 patients with prolactinomas (median age 14...
2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29214441/use-of-111in-pentetreotide-scintigraphy-for-diagnosis-and-management-of-resistant-macroprolactinoma
#8
V Del Gatto, C Bima, S Chiloiro, A Giampietro, A Bianchi
No abstract text is available yet for this article.
December 6, 2017: Endocrine
https://www.readbyqxmd.com/read/29177641/prolactinoma-through-the-female-life-cycle
#9
REVIEW
Deirdre Cocks Eschler, Pedram Javanmard, Katherine Cox, Eliza B Geer
Prolactinomas are the most common secretory pituitary adenoma. They typically occur in women in the 3rd-6th decade of life and rarely in the pediatric population or after menopause. Most women present with irregular menses and/or infertility. Dopamine (DA) agonists, used in their treatment, are safe during pregnancy, but in most cases are discontinued at conception with close monitoring for signs or symptoms of tumor growth. Breastfeeding is safe postpartum, provided there was no significant growth during pregnancy...
January 2018: Endocrine
https://www.readbyqxmd.com/read/29152289/chronic-cluster-like-headache-in-a-patient-with-a-macroprolactinoma-presenting-with-falsely-low-prolactin-levels-bromocriptine-versus-cabergoline
#10
Maria M Pineyro, Gabriela Sosa, Maria R Finozzi, Natalia Stecker, Raul Pisabarro, Maria C Belzarena
Cluster-like headache may be associated with pituitary tumors, mostly prolactinomas. Pituitary imaging and prolactin measurement should be assessed in patients presenting with cluster-like headaches with atypical features or unsatisfactory response to treatment. Furthermore, large pituitary adenomas with moderate increase in prolactin levels should prompt prolactin dilutions to avoid "hook effect".
November 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28889239/into-the-void-a-giant-aneurysm-mimicking-a-macroprolactinoma
#11
Elisa Baranski Lamback, Hugo Rodrigues Gouveia, Daniel Alves Bulzico
No abstract text is available yet for this article.
November 2017: Endocrine
https://www.readbyqxmd.com/read/28670538/menstrual-cycle-abnormalities-in-patients-with-prolactinoma-and-drug-induced-hyperprolactinemia
#12
Bindu Kulshreshtha, Isha Pahuja, Deepak Kothari, Indu Chawla, Neera Sharma, Shikha Gupta, Anuja Mittal
BACKGROUND AND OBJECTIVE: Hyperprolactinemia affects the reproductive endocrine axis; however, the degree of dysfunction may vary depending on etiology. The aim of the present study was to analyze menstrual cyclicity in patients with prolactinoma and drug-induced hyperprolactinemia (DIH). METHODOLOGY: Patients with prolactinoma and DIH were retrospectively analyzed for menstrual cyclicity at presentation and response to therapy. RESULTS: Of 128 females with hyperprolactinemia, 58 had prolactinoma (41 microadenoma and 17 macroadenoma) and 39 had DIH...
July 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28626987/prolactinomas-diagnosed-in-the-postmenopausal-period-clinical-phenotype-and-outcomes
#13
Sandhya Santharam, Metaxia Tampourlou, Wiebke Arlt, John Ayuk, Neil Gittoes, Andrew Toogood, Rachel Webster, Niki Karavitaki
OBJECTIVE: Most prolactinomas in females are diagnosed during the reproductive age, and the majority are microadenomas. Prolactinomas detected in the postmenopausal period are less common with limited published data on their presentation and prognosis. Our objective was to assess the presenting clinical, biochemical and imaging findings, as well as the outcomes of women diagnosed with a prolactinoma in the postmenopausal period. DESIGN AND METHODS: We undertook a retrospective cohort study of women diagnosed with prolactinoma after menopause and followed up in a large UK pituitary centre...
November 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28608351/course-of-aggressive-somatotroph-corticotroph-and-mammotroph-tumors-under-temozolomide-report-of-three-cases-and-review-of-the-literature
#14
Berna İmge Aydoğan, Uğur Ünlütürk, Rıfat Emral, Sevim Güllü
Treatment of aggressive pituitary tumors may be challenging. Temozolomide (TMZ) is a promising agent when conventional treatment methods fail. We present three patients with aggressive pituitary tumors with atypical morphology, who were resistant to conventional treatments and treated with TMZ. First case had a somatotroph adenoma, second a corticotroph adenoma, and the third a macroprolactinoma. We also reviewed the literature reporting TMZ efficacy in somatotroph, corticotroph and mammotroph tumors of pituitary...
May 7, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28523537/prolactinoma-management-predictors-of-remission-and-recurrence-after-dopamine-agonists-withdrawal
#15
Margarida Teixeira, Pedro Souteiro, Davide Carvalho
OBJECTIVE: Prolactinomas are the most common functional pituitary tumour. Dopamine agonists (DA) are its principal treatment. The criteria that should guide therapy withdrawal and the factors that influence disease remission or relapse are not yet fully established. Our purpose is to evaluate the proportion of patients who attempted DA withdrawal, and to identify the factors that influence clinicians to try it. In addition, we aim to study the factors that are involved in prolactinoma remission/relapse after therapy withdrawal...
August 2017: Pituitary
https://www.readbyqxmd.com/read/28511976/fertility-pregnancy-and-prolactinoma-a-survey-of-pituitary-surgeons-view-and-review-of-the-literature
#16
REVIEW
Walter C Jean, Daniel R Felbaum
OBJECTIVE: Pituitary surgeons frequently encounter female prolactinoma patients seeking treatment to restore fertility. Current medical guidelines recommend using dopamine agonist (DA) for this, but for fetal safety, DA should stop upon pregnancy confirmation. The probability that prolactinoma may grow during pregnancy makes this last recommendation imperfect. With the advances in endoscopic surgery, we queried the potential role for surgery in these infertile patients, who may be ambivalent about both stopping and continuing DA while pregnant...
August 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28469923/macroprolactinoma-appearing-after-resolution-of-hydrocephalus
#17
Oscar D Bruno, Ricardo Fernández Pisani, Gabriel Isaac, Armando Basso
SUMMARY: The role of mechanical forces influencing the growth of a pituitary adenoma is poorly understood. In this paper we report the case of a young man with hyperprolactinaemia and an empty sella secondary to hydrocephalia, who developed a macroprolactinoma following the relief of high intraventricular pressure. LEARNING POINTS: The volume of a pituitary tumour may be influenced not only by molecular but also by local mechanical factors.Intratumoural pressure, resistance of the sellar diaphragm and intracranial liquid pressure may play a role in the final size of a pituitary adenoma...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28217516/long-term-cardiac-valvulopathy-safety-of-cabergoline-in-prolactinoma
#18
Shruti Khare, Anurag R Lila, Rishikesh Patil, Milind Phadke, Prafulla Kerkar, Tushar Bandgar, Nalini S Shah
BACKGROUND: Clinical relevance of association of cabergoline use for hyperprolactinemia and cardiac valvulopathy remains unclear. OBJECTIVE: The aim of the study was to determine the prevalence of valvular heart abnormalities in patients taking cabergoline for the treatment of prolactinoma and to explore any associations with the cumulative dose of drug used. DESIGN: A cross-sectional echocardiographic study was performed in patients who were receiving cabergoline therapy for prolactinoma...
January 2017: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28209309/cluster-headache-and-macroprolactinoma-case-report-of-a-rare-but-potential-important-causality
#19
Lukas Andereggen, Marie-Luise Mono, Frauke Kellner-Weldon, Emanuel Christ
While headache is not an uncommon symptom in patients suffering from pituitary adenomas, cluster headache (CH) has rarely been reported in such cases. Headache associated with hyperprolactinemia has been reported to be responsive to dopamine agonists (DA agonists) in many patients. We report on a patient with refractory CH secondary to a macroprolactinoma who showed immediate and permanent clinical and radiologic recovery following medical treatment with DA agonists. Measurement of prolactin levels in addition to cranial magnetic resonance imaging might be considered in patients with refractory CH, until the significance of this potential causality becomes clearer...
June 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28096982/the-birth-and-rise-of-a-craniopharyngioma-the-radiological-evolution-of-an-incidental-craniopharyngioma-detected-on-serial-mri-during-medical-treatment-of-a-macroprolactinoma
#20
Stefano Mariotti, Marco Losa, Pietro Mortini, Luca Saba
This case demonstrates the rare coexistence of a prolactinoma with craniopharyngioma and documents its radiological growth. This case suggests that patients with pituitary neoplasms should be followed closely and although prolactinomas can often be managed medically, a coexistent other lesion may require surgery for histological assessment and to reduce mass effect.
January 2017: Clinical Case Reports
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