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Constantinescu SM, Maiter D, Alexopoulou O. Recovery from hypogonadism in men with prolactinoma treated with dopamine agonists. Pituitary 2024:10.1007/s11102-024-01445-5. [PMID: 39158809 DOI: 10.1007/s11102-024-01445-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/06/2024] [Indexed: 08/20/2024]
Abstract
PURPOSE In men with prolactinoma treated with dopamine agonists (DA), the extent, timeline, and predictive factors of gonadotropic axis recovery are still unclear. METHODS We analyzed data of 97 men with a prolactinoma treated with DA (77/97 macroprolactinomas). We excluded patients with primary hypogonadism, surgery < 12 months after DA initiation, and patients with tumors < 5 mm or prolactin < 45 µg/l at diagnosis. RESULTS Among the 97 patients, 12 had normal total testosterone (NT group) and 85 had low testosterone at diagnosis (LT group). In the NT group, testosterone rose from a mean of 13.5 nmol/l to 17.1nmol/l at 6 months (n = 11; p < 0.05) then remained stable at 12 months (n = 8). In the LT group, testosterone rose from a mean of 5.2 nmol/l to 9.6 nmol/l at 6 months (n = 66; p < 0.001) and further to 13.1nmol/l at 12 months (n = 40; p < 0.001) then remained stable. Recovery from hypogonadism occurred in 43%, 50%, and 54% of patients at 6, 12 and 24 months, respectively (61%, 69 and 69% if prolactin was normal). Factors independently associated with persistent hypogonadism at 12 months were at baseline the presence of visual field deficit and lower testosterone levels, while the most significant independent predictor of persistent hypogonadism at one year was a testosterone level < 7.4 nmol/l at 6 months, with 91% sensitivity and 94% specificity. CONCLUSION Testosterone levels recover in a small majority of men with prolactinoma mostly during the first year of DA treatment. However, testosterone replacement could be considered earlier in patients with large and compressive tumors, and in whom testosterone remains below 7.4 nmol/l after 6 months of DA treatment.
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Affiliation(s)
- Stefan Matei Constantinescu
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint- Luc, 10 Avenue Hippocrate, Brussels, UCLouvain, 1200, Belgium.
| | - Dominique Maiter
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint- Luc, 10 Avenue Hippocrate, Brussels, UCLouvain, 1200, Belgium
| | - Orsalia Alexopoulou
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint- Luc, 10 Avenue Hippocrate, Brussels, UCLouvain, 1200, Belgium
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Dzialach L, Sobolewska J, Zak Z, Respondek W, Witek P. Prolactin-secreting pituitary adenomas: male-specific differences in pathogenesis, clinical presentation and treatment. Front Endocrinol (Lausanne) 2024; 15:1338345. [PMID: 38370355 PMCID: PMC10870150 DOI: 10.3389/fendo.2024.1338345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/22/2024] [Indexed: 02/20/2024] Open
Abstract
Prolactinomas (PRLomas) constitute approximately half of all pituitary adenomas and approximately one-fifth of them are diagnosed in males. The clinical presentation of PRLomas results from direct prolactin (PRL) action, duration and severity of hyperprolactinemia, and tumor mass effect. Male PRLomas, compared to females, tend to be larger and more invasive, are associated with higher PRL concentration at diagnosis, present higher proliferative potential, are more frequently resistant to standard pharmacotherapy, and thus may require multimodal approach, including surgical resection, radiotherapy, and alternative medical agents. Therefore, the management of PRLomas in men is challenging in many cases. Additionally, hyperprolactinemia is associated with a significant negative impact on men's health, including sexual function and fertility potential, bone health, cardiovascular and metabolic complications, leading to decreased quality of life. In this review, we highlight the differences in pathogenesis, clinical presentation and treatment of PRLomas concerning the male sex.
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Affiliation(s)
- Lukasz Dzialach
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Joanna Sobolewska
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Zuzanna Zak
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
| | - Wioleta Respondek
- Department of Internal Medicine, Endocrinology and Diabetes, Mazovian Brodnowski Hospital, Warsaw, Poland
| | - Przemysław Witek
- Department of Internal Medicine, Endocrinology and Diabetes, Medical University of Warsaw, Warsaw, Poland
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Iglesias P, Biagetti B, Araujo-Castro M, Alcázar V, Guerrero-Pérez F, Rivero N, Casteràs A, Gómez CG, Izquierdo BG, Torres VV, Pascual-Corrales E, Pavón I, Villabona C, Cordido F, Díez JJ. Clinical Significance of T2-Weighted Sequence Intensity on Magnetic Resonance Imaging in Clinically Non-Functioning Pituitary Adenomas. Exp Clin Endocrinol Diabetes 2023; 131:631-638. [PMID: 38056490 DOI: 10.1055/a-2197-3566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
BACKGROUND Little is known about the relationship between signal intensity patterns on T2-weighted magnetic resonance imaging (MRI) in non-functioning pituitary adenomas (NFPAs). OBJECTIVE In this study, the clinical, hormonal, histological features, and therapeutic responses were evaluated according to the T2 signal intensity in NFPAs. METHODS This retrospective and multicenter study included a group of 166 NFPA patients (93 men, 56%, mean age 58.5 ±14.8 yr). RESULTS Approximately half of the tumors (n=84, 50.6%) were hyperintense, while 34.3% (n=57) and 15.1% (n=25) were iso- and hypointense, respectively. The median maximum tumor diameter of the isointense group [16 (13-25) mm] was significantly lower than that of the hyperintense [23 (16.6-29.7) mm] group (p=0.003). Similarly, the tumor volume of the isointense group [1,523 (618-5,226) mm3] was significantly lower than that of the hyperintense [4,012 (2,506-8,320) mm3] group (p=0.002). Chiasmatic compression occurred less frequently in tumors with isointense signal characteristics (38.6%) compared to tumors with hypointense (68%) and hyperintense (65.5%) signal characteristics (p=0.003). Invasive adenomas (p=0.001) and the degree of cavernous sinus invasion (p<0.001) were more frequent in the hyperintense adenoma group compared to the remaining groups. Plurihormonal tumors and silent lactotroph adenomas were more frequent in the isointense tumor group. CONCLUSION In conclusion, hyperintensity on T2-weighted MRI in NFPAs is associated with larger and more invasive tumors compared to isointense NFPAs.
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Affiliation(s)
- Pedro Iglesias
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Betina Biagetti
- Department of Endocrinology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Marta Araujo-Castro
- Department of Endocrinology, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Victoria Alcázar
- Department of Endocrinology, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
| | - Fernando Guerrero-Pérez
- Department of Endocrinology, Hospital Universitari de Bellvitge (L'Hospitalet de Llobregat), Barcelona, Spain
| | - Noelia Rivero
- Department of Endocrinology, Complexo Hospitalario Universitario de A Coruña and Universidad de A Coruña, Spain
| | - Anna Casteràs
- Department of Endocrinology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Carlos García Gómez
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Belén García Izquierdo
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
| | - Víctor Viedma Torres
- Department of Endocrinology, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | | | - Isabel Pavón
- Department of Endocrinology, Hospital Universitario de Getafe, Getafe, Madrid, Spain
| | - Carles Villabona
- Department of Endocrinology, Hospital Universitari de Bellvitge (L'Hospitalet de Llobregat), Barcelona, Spain
| | - Fernando Cordido
- Department of Endocrinology, Complexo Hospitalario Universitario de A Coruña and Universidad de A Coruña, Spain
| | - Juan J Díez
- Department of Endocrinology, Hospital Universitario Puerta de Hierro Majadahonda (Majadahonda), Madrid, Spain. Instituto de Investigación Sanitaria Puerta de Hierro Segovia de Arana (IDIPHISA)
- Department of Medicine, Universidad Autónoma de Madrid, Spain
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Petersenn S, Fleseriu M, Casanueva FF, Giustina A, Biermasz N, Biller BMK, Bronstein M, Chanson P, Fukuoka H, Gadelha M, Greenman Y, Gurnell M, Ho KKY, Honegger J, Ioachimescu AG, Kaiser UB, Karavitaki N, Katznelson L, Lodish M, Maiter D, Marcus HJ, McCormack A, Molitch M, Muir CA, Neggers S, Pereira AM, Pivonello R, Post K, Raverot G, Salvatori R, Samson SL, Shimon I, Spencer-Segal J, Vila G, Wass J, Melmed S. Diagnosis and management of prolactin-secreting pituitary adenomas: a Pituitary Society international Consensus Statement. Nat Rev Endocrinol 2023; 19:722-740. [PMID: 37670148 DOI: 10.1038/s41574-023-00886-5] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/27/2023] [Indexed: 09/07/2023]
Abstract
This Consensus Statement from an international, multidisciplinary workshop sponsored by the Pituitary Society offers evidence-based graded consensus recommendations and key summary points for clinical practice on the diagnosis and management of prolactinomas. Epidemiology and pathogenesis, clinical presentation of disordered pituitary hormone secretion, assessment of hyperprolactinaemia and biochemical evaluation, optimal use of imaging strategies and disease-related complications are addressed. In-depth discussions present the latest evidence on treatment of prolactinoma, including efficacy, adverse effects and options for withdrawal of dopamine agonist therapy, as well as indications for surgery, preoperative medical therapy and radiation therapy. Management of prolactinoma in special situations is discussed, including cystic lesions, mixed growth hormone-secreting and prolactin-secreting adenomas and giant and aggressive prolactinomas. Furthermore, considerations for pregnancy and fertility are outlined, as well as management of prolactinomas in children and adolescents, patients with an underlying psychiatric disorder, postmenopausal women, transgender individuals and patients with chronic kidney disease. The workshop concluded that, although treatment resistance is rare, there is a need for additional therapeutic options to address clinical challenges in treating these patients and a need to facilitate international registries to enable risk stratification and optimization of therapeutic strategies.
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Affiliation(s)
- Stephan Petersenn
- ENDOC Center for Endocrine Tumors, Hamburg, Germany.
- University of Duisburg-Essen, Essen, Germany.
| | | | | | - Andrea Giustina
- San Raffaele Vita-Salute University, Milan, Italy
- IRCCS Hospital San Raffaele, Milan, Italy
| | | | | | | | - Philippe Chanson
- Université Paris-Saclay, Assistance Publique-Hôpitaux de Paris Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | | | - Monica Gadelha
- Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yona Greenman
- Tel Aviv-Sourasky Medical Center, Tel Aviv, Israel
- Tel Aviv University, Tel Aviv, Israel
| | - Mark Gurnell
- University of Cambridge, Cambridge, UK
- Addenbrooke's Hospital, Cambridge, UK
| | - Ken K Y Ho
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
| | | | | | - Ursula B Kaiser
- Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Niki Karavitaki
- Institute of Metabolism and Systems Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | | | - Maya Lodish
- University of California, San Francisco, San Francisco, CA, USA
| | | | - Hani J Marcus
- National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Ann McCormack
- Garvan Institute of Medical Research, Sydney, New South Wales, Australia
- St Vincent's Hospital, Sydney, New South Wales, Australia
| | - Mark Molitch
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | | | | | - Alberto M Pereira
- Amsterdam University Medical Centre, University of Amsterdam, Amsterdam, Netherlands
| | | | - Kalmon Post
- Mount Sinai Health System, New York, NY, USA
| | - Gerald Raverot
- Department of Endocrinology, Reference Centre for Rare Pituitary Diseases HYPO, "Groupement Hospitalier Est" Hospices Civils de Lyon, Bron, France
| | | | | | - Ilan Shimon
- Tel Aviv University, Tel Aviv, Israel
- Beilinson Hospital, Rabin Medical Center, Petah-Tikva, Israel
| | | | - Greisa Vila
- Medical University of Vienna, Vienna, Austria
| | - John Wass
- University of Oxford, Oxford, UK
- Churchill Hospital, Oxford, UK
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Fajardo-Montañana C, Villar R, Gómez-Ansón B, Brea B, Mosqueira AJ, Molla E, Enseñat J, Riesgo P, Cardona-Arboniés J, Hernando O. Recommendations for the diagnosis and radiological follow-up of pituitary neuroendocrine tumours. ENDOCRINOL DIAB NUTR 2022; 69:744-761. [PMID: 36428207 DOI: 10.1016/j.endien.2021.10.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/01/2021] [Indexed: 06/16/2023]
Abstract
Pituitary neuroendocrine tumours (PitNETs) constitute a heterogeneous group of tumours with a gradually increasing incidence, partly accounted for by more sensitive imaging techniques and more extensive experience in neuroradiology in this regard. Although most PitNETs are indolent, some exhibit aggressive behaviour, and recurrence may be seen after surgical removal. The changes introduced in the WHO classification in 2017 and terminological debates in relation to neuroendocrine tumours warrant an update of the guidelines for the diagnosis, preoperative and postoperative management, and follow-up of response to treatment of PitNETs. This multidisciplinary document, an initiative of the Neuroendocrinology area of the Sociedad Española de Endocrinología y Nutrición [Spanish Society of Endocrinology and Nutrition] (SEEN), focuses on neuroimaging studies for the diagnosis, prognosis and follow-up of PitNETs. The basic requirements and elements that should be covered by magnetic resonance imaging are described, and a minimum radiology report to aid clinicians in treatment decision-making is proposed. This work supplements the consensus between the Neuroendocrinology area of the SEEN and the Sociedad Española de Anatomía Patológica [Spanish Society of Pathology] (SEAP) for the pathological study of PitNETs.
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Affiliation(s)
| | - Rocío Villar
- Departamento de Endocrinología, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, A Coruña, Spain
| | - Beatriz Gómez-Ansón
- Neurorradiología, Departamento de Radiodiagnóstico, Hospital Universitari Sant Pau, Barcelona, Spain
| | - Beatriz Brea
- Departamento de Radiología, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Antonio Jesús Mosqueira
- Departamento de Radiología, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, A Coruña, Spain
| | - Enrique Molla
- Departamento de Radiología, Hospital Universitario de la Ribera, Alcira, Valencia, Spain
| | - Joaquín Enseñat
- Departamento de Neurocirugía, Hospital Clínic de Barcelona, Barcelona, Spain
| | - Pedro Riesgo
- Departamento de Neurocirugía, Hospital Universitario de la Ribera, Alcira, Valencia, Spain
| | - Jorge Cardona-Arboniés
- Departamento de Medicina Nuclear, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Ovidio Hernando
- Departamento de Oncología Radioterápica, Centro Integral Oncológico Clara Campal, Madrid, Spain
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Gruppetta M. A current perspective of pituitary adenoma MRI characteristics: a review. Expert Rev Endocrinol Metab 2022; 17:499-511. [PMID: 36373167 DOI: 10.1080/17446651.2022.2144230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION MR imaging is an essential and fundamental tool in the diagnosis, management, and follow-up of patients with pituitary adenomas (PAs). Recent advances have continued to enhance the usefulness of this imaging modality. AREAS COVERED This article focuses on signal intensity patterns of PAs and associated clinical characteristics, vertical extension patterns, and cavernous sinus invasion with a special focus on the clinical implications that arise. A search using Medline and Google Scholar was conducted using different combinations of relevant keywords, giving preference to recent publications. EXPERT OPINION A higher proportion of GH-secreting PAs are hypointense on T2 weighted images compared to other tumor subtypes. Hypointense tumors are generally smaller compared to hyperintense ones, and among the GH-secreting subgroup, a better response to somatostatin analogue treatment was noted together with an association for a densely granulated pattern. Nonfunctional PAs show a predilection to extend upwards while GH-secreting PAs and prolactinomas show a predominantly inferior extension growth pattern. Further studies to better understand the mechanisms responsible for this behavior are anticipated. Further development, refining and validation of predictive scoring systems for tumor behavior might be useful adjuncts in the management of patients with PAs.
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Affiliation(s)
- Mark Gruppetta
- Department of Medicine, Faculty of Medicine and Surgery, University of Malta, Mater Dei Hospital, Msida, Malta
- Department of Medicine, Neuroendocrine Clinic, Mater Dei Hospital, Msida, Malta
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7
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Update in Pathogenesis, Diagnosis, and Therapy of Prolactinoma. Cancers (Basel) 2022; 14:cancers14153604. [PMID: 35892862 PMCID: PMC9331865 DOI: 10.3390/cancers14153604] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary This review updates recent advances in the pathogenesis, diagnosis, and therapy of prolactinoma. Prolactinomas, comprising 30–50% of all pituitary neuroendocrine tumors, frequently occur in females aged 20 to 50 and cause hypogonadism and infertility. In typical cases, female patients exhibit galactorrhea and amenorrhea due to serum prolactin (PRL) elevation, and during pregnancy, they should be carefully treated. During diagnosis, other causes of hyperprolactinemia must be excluded, and an MRI is useful for detecting pituitary neuroendocrine tumors. For the treatment of prolactinoma, dopamine agonists are effective in decreasing PRL levels and shrinking tumor size in most patients. Surgical treatment is recommended for patients who are resistant or intolerant to dopamine agonists. This review also discusses giant and malignant prolactinomas, prolactinoma-associated pregnancy, and new therapeutic approaches. Abstract Prolactinomas comprise 30–50% of all pituitary neuroendocrine tumors, frequently occur in females aged 20 to 50, and cause hypogonadism and infertility. In typical cases, female patients exhibit galactorrhea and amenorrhea due to serum prolactin (PRL) elevation, and patients during pregnancy should be carefully treated. During diagnosis, other causes of hyperprolactinemia must be excluded, and an MRI is useful for detecting pituitary neuroendocrine tumors. For treating prolactinoma, dopamine agonists (DAs) are effective for decreasing PRL levels and shrinking tumor size in most patients. Some DA-resistant cases and the molecular mechanisms of resistance to a DA are partially clarified. The side effects of a DA include cardiac valve alterations and impulse control disorders. Although surgical therapies are invasive, recent analysis shows that long-term remission rates are higher than from medical therapies. The treatments for giant or malignant prolactinomas are challenging, and the combination of medication, surgery, and radiation therapy should be considered. Regarding pathogenesis, somatic SF3B1 mutations were recently identified even though molecular mechanisms in most cases of prolactinoma have not been elucidated. To understand the pathogenesis of prolactinomas, the development of new therapeutic approaches for treatment-resistant patients is expected. This review updates the recent advances in understanding the pathogenesis, diagnosis, and therapy of prolactinoma.
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Cozzi R, Ambrosio MR, Attanasio R, Battista C, Bozzao A, Caputo M, Ciccarelli E, De Marinis L, De Menis E, Faustini Fustini M, Grimaldi F, Lania A, Lasio G, Logoluso F, Losa M, Maffei P, Milani D, Poggi M, Zini M, Katznelson L, Luger A, Poiana C. Italian Association of Clinical Endocrinologists (AME) and International Chapter of Clinical Endocrinology (ICCE). Position statement for clinical practice: prolactin-secreting tumors. Eur J Endocrinol 2022; 186:P1-P33. [PMID: 35000899 PMCID: PMC8859924 DOI: 10.1530/eje-21-0977] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 01/06/2022] [Indexed: 12/03/2022]
Abstract
Prolactinomas are the most frequent pituitary adenomas. Prolactinoma may occur in different clinical settings and always require an individually tailored approach. This is the reason why a panel of Italian neuroendocrine experts was charged with the task to provide indications for the diagnostic and therapeutic approaches that can be easily applied in different contexts. The document provides 15 recommendations for diagnosis and 54 recommendations for treatment, issued according to the GRADE system. The level of agreement among panel members was formally evaluated by RAND-UCLA methodology. In the last century, prolactinomas represented the paradigm of pituitary tumors for which the development of highly effective drugs obtained the best results, allowing to avoid neurosurgery in most cases. The impressive improvement of neurosurgical endoscopic techniques allows a far better definition of the tumoral tissue during surgery and the remission of endocrine symptoms in many patients with pituitary tumors. Consequently, this refinement of neurosurgery is changing the therapeutic strategy in prolactinomas, allowing the definitive cure of some patients with permanent discontinuation of medical therapy.
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Affiliation(s)
- Renato Cozzi
- Division of Endocrinology, Niguarda Hospital, Milan, Italy
- Correspondence should be addressed to R Cozzi;
| | - Maria Rosaria Ambrosio
- Section of Endocrinology and Internal Medicine, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | | | - Claudia Battista
- Endocrinology Unit, IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo (FG), Italy
| | - Alessandro Bozzao
- Neuroradiology, S. Andrea Hospital, NESMOS Department (Neuroscience, Mental Health, Sensorial Organs), Sapienza University of Rome, Rome, Italy
| | - Marco Caputo
- Laboratorio Analisi Cliniche e Microbiologia, Synlab SRL, Calenzano, Florence, Italy
| | | | - Laura De Marinis
- Pituitary Unit, Department of Endocrinology, Catholic University of the Sacred Heart, School of Medicine, Rome, Italy
| | | | | | - Franco Grimaldi
- AME President, Endocrinology and Metabolism Unit, University Hospital S. Maria della Misericordia, Udine, Italy
| | - Andrea Lania
- Department of Biomedical Sciences, Endocrinology Unit, Rozzano, Italy
| | - Giovanni Lasio
- Department of Neurosurgery, Humanitas Clinical and Research Center IRCCS, Rozzano, Italy
| | | | - Marco Losa
- Department of Neurosurgery and Gamma Knife Radiosurgery, IRCCS San Raffaele Scientific Institute, Vita-Salute University, Milan, Italy
| | - Pietro Maffei
- Department of Medicine (DIMED), 3rd Medical Clinic, Padua University Hospital, Padua, Italy
| | - Davide Milani
- Department of Neurosurgery, Humanitas Clinical and Research Center IRCCS, Rozzano, Italy
| | - Maurizio Poggi
- Endocrinology, Department of Clinical and Molecular Medicine, S. Andrea Hospital, Sapienza University of Rome, Rome, Italy
| | - Michele Zini
- Endocrinology Unit, Azienda Ospedaliera S. Maria Nuova IRCCS, Reggio Emilia, Italy
| | | | - Anton Luger
- Division of Endocrinology and Metabolism, Medical University of Vienna, Vienna, Austria
| | - Catalina Poiana
- ‘Carol Davila’ University of Medicine and Pharmacy – Endocrinology, “C.I. Parhon” National Institute of Endocrinology – Pituitary and Neuroendocrine Disorders, Bucharest, Romania
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Fajardo-Montañana C, Villar R, Gómez-Ansón B, Brea B, Mosqueira AJ, Molla E, Enseñat J, Riesgo P, Cardona-Arboniés J, Hernando O. Recomendaciones sobre el diagnóstico y seguimiento radiológico de los tumores neuroendocrinos hipofisarios. ENDOCRINOL DIAB NUTR 2021. [DOI: 10.1016/j.endinu.2021.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Application of Contrast-Enhanced 3-Dimensional T2-Weighted Volume Isotropic Turbo Spin Echo Acquisition Sequence in the Diagnosis of Prolactin-Secreting Pituitary Microadenomas. J Comput Assist Tomogr 2021; 46:116-123. [PMID: 35099143 PMCID: PMC8763247 DOI: 10.1097/rct.0000000000001237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Wildemberg LE, Fialho C, Gadelha MR. Prolactinomas. Presse Med 2021; 50:104080. [PMID: 34687915 DOI: 10.1016/j.lpm.2021.104080] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 08/31/2021] [Accepted: 10/12/2021] [Indexed: 12/28/2022] Open
Abstract
Hyperprolactinemia, defined by a level of serum prolactin above the standard upper limit of normal range, is a common finding in clinical practice and prolactinomas are the main pathological cause. Prolactinomas lead to signs and symptoms of hormone oversecretion, such as galactorrhea and hypogonadism, as well as symptoms of mass effect, including visual impairment, headaches and intracranial hypertension. Diagnosis involves prolactin measurement and sellar imaging, but several pitfalls are involved in this evaluation, which may difficult the proper management. Treatment is medical in the majority of cases, consisting of dopamine agonists, which present high response rates, with a very favorable safety profile. Major adverse effects that should be monitored consist of cardiac valvulopathy and impulse control disorders. Other treatment options include surgery and radiotherapy. Temozolomide may be used for aggressive or malignant carcinomas. Finally, pregnancy outcomes are similar to general population even when dopamine agonist treatment is maintained.
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Affiliation(s)
- Luiz Eduardo Wildemberg
- Endocrine Unit and Neuroendocrinology Research Center, Medical School and Hospital Universitário Clementino Fraga Filho - Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Neuroendocrine Unit - Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro, Brazil
| | - Christhiane Fialho
- Endocrine Unit and Neuroendocrinology Research Center, Medical School and Hospital Universitário Clementino Fraga Filho - Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Monica R Gadelha
- Endocrine Unit and Neuroendocrinology Research Center, Medical School and Hospital Universitário Clementino Fraga Filho - Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Neuroendocrine Unit - Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro, Brazil; Neuropathology and Molecular Genetics Laboratory, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde, Rio de Janeiro, Brazil.
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Wright K, Lee M, Escobar N, Pacione D, Young M, Fatterpekar G, Agrawal N. Tumor volume improves preoperative differentiation of prolactinomas and nonfunctioning pituitary adenomas. Endocrine 2021; 74:138-145. [PMID: 33966173 DOI: 10.1007/s12020-021-02744-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 04/23/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Both prolactinomas and nonfunctioning adenomas (NFAs) can present with hyperprolactinemia. Distinguishing them is critical because prolactinomas are effectively managed with dopamine agonists, whereas compressive NFAs are treated surgically. Current guidelines rely only on serum prolactin (PRL) levels, which are neither sensitive nor specific enough. Recent studies suggest that accounting for tumor volume may improve diagnosis. The objective of this study is to investigate the diagnostic utility of PRL, tumor volume, and imaging features in differentiating prolactinoma and NFA. METHODS Adult patients with pathologically confirmed prolactinoma (n = 21) or NFA with hyperprolactinemia (n = 58) between 2013 and 2020 were retrospectively identified. Diagnostic performance of clinical and imaging variables was analyzed using receiver-operating characteristic curves to calculate area under the curve (AUC). RESULTS Tumor volume and PRL positively correlated for prolactinoma (r = 0.4839, p = 0.0263) but not for NFA (r = 0.0421, p = 0.7536). PRL distinguished prolactinomas from NFAs with an AUC of 0.8892 (p < 0.0001) and optimal cut-off value of 62.45 ng/ml, yielding a sensitivity of 85.71% and specificity of 94.83%. The ratio of PRL to tumor volume had an AUC of 0.9647 (p < 0.0001) and optimal cut-off value of 21.62 (ng/ml)/cm3 with sensitivity of 100% and specificity of 82.76%. Binary logistic regression found that PRL was a significant positive predictor of prolactinoma diagnosis, whereas tumor volume, presence of cavernous sinus invasion, and T2 hyperintensity were significant negative predictors. The regression model had an AUC of 0.9915 (p < 0.0001). CONCLUSIONS Consideration of tumor volume improves differentiation between prolactinomas and NFAs, which in turn leads to effective management.
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Affiliation(s)
- Kyla Wright
- NYU Grossman School of Medicine, NYU Langone Health, 550 1st Ave, New York, NY, 10016, USA
| | - Matthew Lee
- Department of Radiology, NYU Langone Medical Center, 550 1st Avenue, New York, NY, 10016, USA
| | - Natalie Escobar
- NYU Grossman School of Medicine, NYU Langone Health, 550 1st Ave, New York, NY, 10016, USA
| | - Donato Pacione
- Department of Neurosurgery, NYU Langone Medical Center, 1st Avenue, New York, NY, 10016, USA
| | - Matthew Young
- Department of Radiology, NYU Langone Medical Center, 550 1st Avenue, New York, NY, 10016, USA
| | - Girish Fatterpekar
- Department of Radiology, NYU Langone Medical Center, 550 1st Avenue, New York, NY, 10016, USA
| | - Nidhi Agrawal
- Division of Endocrinology, Diabetes and Metabolism, NYU Langone Medical Center/ Bellevue Hospital Center, 550 1st Avenue, New York, NY, 10016, USA.
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Park YW, Eom J, Kim S, Kim H, Ahn SS, Ku CR, Kim EH, Lee EJ, Kim SH, Lee SK. Radiomics With Ensemble Machine Learning Predicts Dopamine Agonist Response in Patients With Prolactinoma. J Clin Endocrinol Metab 2021; 106:e3069-e3077. [PMID: 33713414 DOI: 10.1210/clinem/dgab159] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT Early identification of the response of prolactinoma patients to dopamine agonists (DA) is crucial in treatment planning. OBJECTIVE To develop a radiomics model using an ensemble machine learning classifier with conventional magnetic resonance images (MRIs) to predict the DA response in prolactinoma patients. DESIGN Retrospective study. SETTING Severance Hospital, Seoul, Korea. PATIENTS A total of 177 prolactinoma patients who underwent baseline MRI (109 DA responders and 68 DA nonresponders) were allocated to the training (n = 141) and test (n = 36) sets. Radiomic features (n = 107) were extracted from coronal T2-weighed MRIs. After feature selection, single models (random forest, light gradient boosting machine, extra-trees, quadratic discrimination analysis, and linear discrimination analysis) with oversampling methods were trained to predict the DA response. A soft voting ensemble classifier was used to achieve the final performance. The performance of the classifier was validated in the test set. RESULTS The ensemble classifier showed an area under the curve (AUC) of 0.81 [95% confidence interval (CI), 0.74-0.87] in the training set. In the test set, the ensemble classifier showed an AUC, accuracy, sensitivity, and specificity of 0.81 (95% CI, 0.67-0.96), 77.8%, 78.6%, and 77.3%, respectively. The ensemble classifier achieved the highest performance among all the individual models in the test set. CONCLUSIONS Radiomic features may be useful biomarkers to predict the DA response in prolactinoma patients.
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Affiliation(s)
- Yae Won Park
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
| | - Jihwan Eom
- Department of Computer Science, Yonsei University, Seoul, Korea
| | - Sooyon Kim
- Department of Statistics and Data Science, Yonsei University, Seoul, Korea
| | - Hwiyoung Kim
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
| | - Sung Soo Ahn
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
| | - Cheol Ryong Ku
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
- Department of Endocrinology, Yonsei University College of Medicine, Seoul, Korea
| | - Eui Hyun Kim
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
- Department of Endocrinology, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Jig Lee
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
- Department of Neurosurgery, Yonsei University College of Medicine, Seoul, Korea
| | - Sun Ho Kim
- Department of Neurosurgery, Ewha Womans University College of Medicine, Seoul, Korea
| | - Seung-Koo Lee
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Korea
- Pituitary Tumor Center, Severance Hospital, Seoul, Korea
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Magnetic resonance fingerprinting for preoperative differentiation between gonadotroph and non-gonadotroph pituitary macroadenomas. Eur Radiol 2021; 31:8420-8428. [PMID: 33914117 DOI: 10.1007/s00330-021-07950-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 02/26/2021] [Accepted: 03/25/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVES To use magnetic resonance fingerprinting (MRF)-derived T1 and T2 values to differentiate gonadotroph from non-gonadotroph pituitary macroadenomas based on the 2017 World Health Organization classification of pituitary adenomas. METHODS A total of 57 patients with suspected pituitary macroadenomas were enrolled for analyses in this study between May 2018 and January 2020. Conventional magnetic resonance imaging (MRI) and MRF were performed in all patients before surgery using a 3-T MRI scanner. MRF-derived T1 and T2 values were compared between the gonadotroph and non-gonadotroph pituitary macroadenomas using a Mann-Whitney U test. The Knosp classification was used to evaluate cavernous sinus invasion by the adenomas. Receiver operating characteristic analyses were used to determine the diagnostic performance of T1 and T2 values. RESULTS Quantitative T1 and T2 values yielded from MRF of gonadotroph pituitary macroadenomas were significantly higher than those of the non-gonadotroph pituitary macroadenomas (p < 0.001 and = 0.002, respectively). The AUC for the T2 value (0.888) was significantly greater than that for the T1 value (0.742) (p = 0.034). The AUC for combined T1 and T2 values was 0.885. Non-gonadotroph pituitary macroadenomas were more likely to invade the cavernous sinus than gonadotroph pituitary macroadenomas (55% vs 26%, p = 0.026). CONCLUSIONS MRF may help to preoperatively differentiate between gonadotroph and non-gonadotroph pituitary macroadenomas and may be useful in guiding the treatment of these adenomas. KEY POINTS • Somatostatin receptor type 3 is the most abundant receptor subtype in gonadotroph pituitary adenomas. • Magnetic resonance fingerprinting may help to preoperatively differentiate between gonadotroph and non-gonadotroph pituitary macroadenomas. • Magnetic resonance fingerprinting shows potential for guiding the treatment of pituitary macroadenomas.
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15
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Kim K, Park YW, Kim D, Ahn SS, Moon JH, Kim EH, Lee EJ, Ku CR. Biochemical Remission after Cabergoline Withdrawal in Hyperprolactinemic Patients with Visible Remnant Pituitary Adenoma. J Clin Endocrinol Metab 2021; 106:e615-e624. [PMID: 33079168 DOI: 10.1210/clinem/dgaa744] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Indexed: 12/13/2022]
Abstract
CONTEXT Dopamine agonists (DAs) are the first-line therapy for prolactinomas. Although pituitary tumors often do not completely disappear, discontinuing DAs in patients with no visible tumor on magnetic resonance imaging is advised. OBJECTIVE To analyze biochemical remission after cabergoline (CAB) withdrawal in patients with visible remnant pituitary tumors. DESIGN Retrospective cohort study. SETTING Severance Hospital. SUBJECTS We identified 734 patients with prolactinomas undergoing CAB therapy for at least 12 months from 2005 to 2018. We selected 44 patients with prolactinomas who discontinued CAB with normal prolactin levels; they were receiving a minimal CAB dose but had visible remnant tumors. RESULTS Median age at diagnosis was 32 (18-58) years, and most patients were women (95.45%). Median treatment duration was 32 (12-120) months. Of 44 patients, 33 continued to have normoprolactinemia, but 11 patients developed hyperprolactinemia after drug withdrawal within 26 (12-97) months. Age, sex, maximal and remnant tumor size, and treatment duration were similar between the groups. The initial prolactin level and chances of cavernous sinus (CS) invasion were higher in the recurrence group. CS invasion at diagnosis was associated with an increased recurrence rate. Although treatment response did not correlate with the initial and final signal intensity assessments, a significant decrease in T2 intensity ratio after 6 months of CAB therapy was observed in the remission group (P = .043). CONCLUSION In patients with visible tumors, the presence of CS invasion at diagnosis may be an unfavorable predictor for biochemical remission after CAB discontinuation.
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Affiliation(s)
- Kyungwon Kim
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yae Won Park
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Daham Kim
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sung Soo Ahn
- Department of Radiology and Research Institute of Radiological Science and Center for Clinical Imaging Data Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ju Hyung Moon
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eui Hyun Kim
- Department of Neurosurgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Jig Lee
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Cheol Ryong Ku
- Endocrinology, Institute of Endocrine Research, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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Varlamov EV, Hinojosa-Amaya JM, Fleseriu M. Magnetic resonance imaging in the management of prolactinomas; a review of the evidence. Pituitary 2020; 23:16-26. [PMID: 31659622 DOI: 10.1007/s11102-019-01001-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
PURPOSE This review aimed to evaluate data on the use of magnetic resonance imaging in the management of prolactinomas. METHODS Recent literature about prolactinoma behavior and magnetic resonance imaging in the management of prolactinomas is reviewed. RESULTS A review of evidence regarding prolactinoma pituitary MRI follow-up; techniques and sequences, recent data on possible gadolinium retention, the role and a review of T2-weighted images in the identification of prolactinomas and frequently encountered clinical scenarios, as well as MRI correlation with prolactin secretion, tumor growth and prediction of response to medical therapy are presented. CONCLUSION The underlying decision to perform serial imaging in prolactinoma patients should be individualized on a case-by-case basis. Future studies should focus on alternative imaging methods and/or contract agents.
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Affiliation(s)
- Elena V Varlamov
- Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 SW Bond Ave, Portland, OR, 97239, USA
| | - José Miguel Hinojosa-Amaya
- Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 SW Bond Ave, Portland, OR, 97239, USA
- Endocrinology Division, Department of Medicine, Hospital Universitario "Dr. José E. González", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Maria Fleseriu
- Departments of Medicine (Endocrinology) and Neurological Surgery, and Northwest Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 SW Bond Ave, Portland, OR, 97239, USA.
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Tumor T2 signal intensity and stalk angulation correlates with endocrine status in pituitary adenoma patients: a quantitative 7 tesla MRI study. Neuroradiology 2020; 62:473-482. [PMID: 31925468 DOI: 10.1007/s00234-019-02352-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/22/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE Pituitary adenomas are common CNS tumors that can cause endocrine dysfunction due to hormone oversecretion and by mass effect on the normal gland. The study of pituitary adenomas and adjacent sellar anatomy with high-resolution 7 T MRI may further characterize endocrine dysfunction. The purpose of this study was to determine the efficacy of 7 T MRI in identifying radiological markers for endocrine function. METHODS MR images obtained in 23 patients with pituitary adenomas were reviewed by consensus between three neuroradiologists. Landmarks and criteria were devised to measure radiological features of stalk, tumor, and normal gland. Fischer's exact tests and nominal logistic regression were performed. RESULTS Mean cross-sectional area of the stalk just below the infundibular recess was 6.3 ± 3.7 mm2. Mean curvature and deviation angles were 34.2° ± 23.2° and 29.7° ± 17.3°, respectively. Knosp scores obtained differed between 7 T and lower field strength scans (P < 0.0001 [right] and P = 0.0006 [left]). Ability to characterize tumor was rated higher at 7 T compared with lower field MRI, P = 0.05. Confidence in visualizing normal gland was also higher using 7 T MRI, P = 0.036. The six hormone-secreting tumors had higher corrected T2 mean SI than non-secreting tumors (2.54 vs. - 0.38, P = 0.0196). Seven patients had preoperative hypopituitarism and had significantly greater stalk curvature angles than patients without hypopituitarism (71.7° vs. 36.55°, P = 0.027). CONCLUSION Radiological characterization of pituitary adenomas and adjacent native pituitary tissue may benefit with the use of 7 T MRI. Corrected T2 SI of tumor may be a sensitive predictor of hormonal secretion and may be useful in the diagnostic work-up for pituitary adenoma. 7 T MRI may be valuable in identifying markers of endocrine function in patients with pituitary adenomas. Our results indicate that hormone-secreting tumors have higher T2-weighted SI and tumors associated with preoperative hypopituitarism have greater stalk curvature angles.
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Chanson P, Maiter D. The epidemiology, diagnosis and treatment of Prolactinomas: The old and the new. Best Pract Res Clin Endocrinol Metab 2019; 33:101290. [PMID: 31326373 DOI: 10.1016/j.beem.2019.101290] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Prevalence and incidence of prolactinomas are approximately 50 per 100,000 and 3-5 new cases/100,000/year. The pathophysiological mechanism of hyperprolactinemia-induced gonadotropic failure involves kisspeptin neurons. Prolactinomas in males are larger, more invasive and less sensitive to dopamine agonists (DAs). Macroprolactin, responsible for pseudohyperprolactinemia is a frequent pitfall of prolactin assay. DAs still represent the primary therapy for most prolactinomas, but neurosurgery has regained interest, due to progress in surgical techniques and a high success rate in microprolactinoma, as well as to some underestimated side effects of long-term DA treatment, such as impulse control disorders or impaired quality of life. Recent data show that the suspected effects of DAs on cardiac valves in patients with prolactinomas are reassuring. Finally, temozolomide has emerged as a valuable treatment for rare cases of aggressive and malignant prolactinomas that do not respond to all other conventional treatments.
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Affiliation(s)
- Philippe Chanson
- Assistance Publique-Hôpitaux de Paris (AP-HP), Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, Hôpital de Bicêtre, F-94275, Le Kremlin-Bicêtre, France; UMR-S1185 Université Paris-Sud, Univ Paris-Saclay, F-94276, Le Kremlin-Bicêtre, France; Institut National de la Santé et de la Recherche Médicale (Inserm) U1185, F-94276, Le Kremlin Bicêtre, France.
| | - Dominique Maiter
- Service d'Endocrinologie et Nutrition, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
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