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Fleseriu M, Christ-Crain M, Langlois F, Gadelha M, Melmed S. Hypopituitarism. Lancet 2024; 403:2632-2648. [PMID: 38735295 DOI: 10.1016/s0140-6736(24)00342-8] [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] [Received: 10/25/2023] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 05/14/2024]
Abstract
Partial or complete deficiency of anterior or posterior pituitary hormone production leads to central hypoadrenalism, central hypothyroidism, hypogonadotropic hypogonadism, growth hormone deficiency, or arginine vasopressin deficiency depending on the hormones affected. Hypopituitarism is rare and likely to be underdiagnosed, with an unknown but rising incidence and prevalence. The most common cause is compressive growth or ablation of a pituitary or hypothalamic mass. Less common causes include genetic mutations, hypophysitis (especially in the context of cancer immunotherapy), infiltrative and infectious disease, and traumatic brain injury. Clinical features vary with timing of onset, cause, and number of pituitary axes disrupted. Diagnosis requires measurement of basal circulating hormone concentrations and confirmatory hormone stimulation testing as needed. Treatment is aimed at replacement of deficient hormones. Increased mortality might persist despite treatment, particularly in younger patients, females, and those with arginine vasopressin deficiency. Patients with complex diagnoses, pregnant patients, and adolescent pituitary-deficient patients transitioning to adulthood should ideally be managed at a pituitary tumour centre of excellence.
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Affiliation(s)
- Maria Fleseriu
- Department of Medicine, Division of Endocrinology, Diabetes and Clinical Nutrition, Oregon Health and Science University, Portland, OR, USA; Department of Neurological Surgery, Oregon Health and Science University, Portland, OR, USA; Pituitary Center, Oregon Health and Science University, Portland, OR, USA.
| | - Mirjam Christ-Crain
- Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Fabienne Langlois
- Department of Medicine, Division of Endocrinology, Centre intégré universitaire de santé et de services sociaux de l'Estrie, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC, Canada
| | - Mônica 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
| | - Shlomo Melmed
- Department of Medicine and Pituitary Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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2
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Whyte E, Nezu M, Chik C, Tateno T. Update on Current Evidence for the Diagnosis and Management of Nonfunctioning Pituitary Neuroendocrine Tumors. Endocrinol Metab (Seoul) 2023; 38:631-654. [PMID: 37964483 PMCID: PMC10764990 DOI: 10.3803/enm.2023.1838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/29/2023] [Accepted: 11/01/2023] [Indexed: 11/16/2023] Open
Abstract
Pituitary neuroendocrine tumors (PitNETs) are the third most frequently diagnosed intracranial tumors, with nonfunctioning PitNETs (nfPitNETs) accounting for 30% of all pituitary tumors and representing the most common type of macroPitNETs. NfPitNETs are usually benign tumors with no evidence of hormone oversecretion except for hyperprolactinemia secondary to pituitary stalk compression. Due to this, they do not typically present with clinical syndromes like acromegaly, Cushing's disease or hyperthyroidism and instead are identified incidentally on imaging or from symptoms of mass effects (headache, vision changes, apoplexy). With the lack of effective medical interventions, first-line treatment is transsphenoidal surgical resection, however, nfPitNETs often have supra- or parasellar extension, and total resection of the tumor is often not possible, resulting in residual tumor regrowth or reoccurrence. While functional PitNETs can be easily followed for recurrence using hormonal biomarkers, there is no similar parameter to predict recurrence in nfPitNETs, hence delaying early recognition and timely management. Therefore, there is a need to identify prognostic biomarkers that can be used for patient surveillance and as therapeutic targets. This review focuses on summarizing the current evidence on nfPitNETs, with a special focus on potential new biomarkers and therapeutics.
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Affiliation(s)
- Elizabeth Whyte
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Masahiro Nezu
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Constance Chik
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, AB, Canada
| | - Toru Tateno
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, AB, Canada
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3
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Constantinescu SM, Duprez T, Fomekong E, Raftopoulos C, Alexopoulou O, Maiter D. Natural history and surgical outcome of incidentally discovered clinically nonfunctioning pituitary macroadenomas. Endocr Connect 2023; 12:e230224. [PMID: 37887079 PMCID: PMC10620450 DOI: 10.1530/ec-23-0224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 10/02/2023] [Indexed: 10/03/2023]
Abstract
Objectives The incidental diagnosis of nonfunctioning pituitary macroadenomas (NFPMAs) is becoming more prevalent with the spread of modern brain imaging techniques. We sought to uncover new data about their natural history and surgical outcome. Design This is a retrospective single-center observational study. Methods Among 210 patients seen for a NFPMA between 2010 and 2019, 70 (33%) were discovered incidentally (i-NFPMA). We analyzed outcomes in a total of 65 patients with available follow-up data. Results Mean age at diagnosis (± s.d.) was 60 ± 14 years and mean maximal diameter was 20.0 ± 7.3 mm. At diagnosis, 29 patients (45%) had pituitary hormone deficits (LH/FSH 41%, TSH 29%, ACTH 15%) and 12% had visual field deficits. 26 patients underwent initial surgery, while 12 had delayed surgery after initial surveillance. In the surveillance group, the risk of tumor growth was estimated at 10%/year. Patients with hormonal deficits at diagnosis experienced earlier growth at 24 months (P < 0.02). Overall, surgical resection of the i-NFPMA led to stable or improved endocrine function in 91% of patients, with only 6% postoperative permanent diabetes insipidus. Moreover, surgery was more effective in preserving intact endocrine function (10/12) than restoring altered endocrine function to normal (6/22, P = 0.03). Conclusion About one-third of NFPMAs are now discovered incidentally and a significant subset may be responsible for unrecognized endocrine and visual deficits. Under surveillance the risk of further tumor growth is significant (10%/year) and seems to occur faster in patients already harboring an endocrine deficit. Early surgical removal before onset of endocrine deficits appears to lead to better endocrine outcome.
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Affiliation(s)
- Stefan M Constantinescu
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Thierry Duprez
- Department of Radiology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Edward Fomekong
- Department of Neurosurgery, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | | | - Orsalia Alexopoulou
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Dominique Maiter
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Brussels, Belgium
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Guerreiro V, Mendonça F, Urbano Ferreira H, Freitas P, Pereira J, Bernardes I, Pinheiro J, Guimarães T, Carvalho D. Incidental versus symptomatic nonfunctioning pituitary adenomas: Are they different? Endocrinol Diabetes Metab 2023; 6:e445. [PMID: 37697708 PMCID: PMC10638623 DOI: 10.1002/edm2.445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/09/2023] [Accepted: 07/23/2023] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND Nonfunctioning pituitary adenomas (NFPAs) constitute one of the most common tumours in the sellar region and are often discovered only when associated with compressive symptoms. With the frequent use of brain imaging, there has been an increase in the prevalence of incidentally discovered NFPAs. AIM We aim to determine the prevalence of incidental diagnosis with NPAs observed over a decade and compare the analytical, clinical and treatment differences between those who were diagnosed either incidentally or symptomatically. We also intend to evaluate the pathology differences between both groups. METHODS We retrospectively analysed patients aged ≥18 years with an apparent NFPA, defined as a pituitary lesion compatible with pituitary adenoma which is not associated with the clinical or biochemical evidence of a hormone-secreting tumour. Inclusion criteria included normal prolactin level for lesions <9 mm or a prolactin level <100 ng/mL for lesions ≥10 mm in maximal tumour diameter. RESULTS We included 119 patients [53.8% males; mean age: 56.8 years (SD = 16.7)]. Diagnosis was incidental in 47.1% of patients, and many patients had unappreciated signs and symptoms of pituitary disease. In the symptomatic and incidental groups, 66.7% and 41.1% of patients had hypopituitarism, respectively (p = .005). Only 20.4% of patients incidentally diagnosed had microadenoma (p = .060). Hypopituitarism was present in 18.8% of those patients with microadenomas. Most tumours were macroadenomas (87.4%). Half of those patients diagnosed incidentally were submitted to surgery, compared with 75.8% of those who were diagnosed symptomatically (p = .004). CONCLUSIONS Nonfunctioning pituitary adenomas are commonly diagnosed incidentally, with many manifesting symptoms on examination. NFPAs incidentally diagnosed are more commonly macroadenomas and less frequently associated with hypopituitarism than symptomatic. Accordingly, if there was a greater level of knowledge and more suspicion about these pathologies, it might be possible to discover them earlier.
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Affiliation(s)
- Vanessa Guerreiro
- Department of Endocrinology, Diabetes and MetabolismCentro Hospitalar São João, EPEPortoPortugal
- Faculty of Medicine of the University of PortoPortoPortugal
- Instituto de Investigação e Inovação em SaúdeUniversity of PortoPortoPortugal
| | - Fernando Mendonça
- Department of Endocrinology, Diabetes and MetabolismCentro Hospitalar São João, EPEPortoPortugal
- Faculty of Medicine of the University of PortoPortoPortugal
- Instituto de Investigação e Inovação em SaúdeUniversity of PortoPortoPortugal
| | - Helena Urbano Ferreira
- Department of Endocrinology, Diabetes and MetabolismCentro Hospitalar São João, EPEPortoPortugal
- Faculty of Medicine of the University of PortoPortoPortugal
- Instituto de Investigação e Inovação em SaúdeUniversity of PortoPortoPortugal
| | - Paula Freitas
- Department of Endocrinology, Diabetes and MetabolismCentro Hospitalar São João, EPEPortoPortugal
- Faculty of Medicine of the University of PortoPortoPortugal
- Instituto de Investigação e Inovação em SaúdeUniversity of PortoPortoPortugal
| | - Josué Pereira
- Department of NeurosurgeryCentro Hospitalar de São João, EPEPortoPortugal
| | - Irene Bernardes
- Department of NeuroradiologyCentro Hospitalar de São João, EPEPortoPortugal
| | - Jorge Pinheiro
- Department of Anatomic PathologyCentro Hospitalar de São João, EPEPortoPortugal
| | - Tiago Guimarães
- Faculty of Medicine of the University of PortoPortoPortugal
- Department of Clinical PathologyCentro Hospitalar de São João, EPEPortoPortugal
- EPIUnit, Instituto de Saúde PúblicaUniversidade do PortoPortoPortugal
| | - Davide Carvalho
- Department of Endocrinology, Diabetes and MetabolismCentro Hospitalar São João, EPEPortoPortugal
- Faculty of Medicine of the University of PortoPortoPortugal
- Instituto de Investigação e Inovação em SaúdeUniversity of PortoPortoPortugal
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Han AJ, Fleseriu M, Varlamov EV. Symptoms at presentation in conservatively managed patients with non-functioning pituitary adenomas. Hormones (Athens) 2023; 22:305-309. [PMID: 36905572 DOI: 10.1007/s42000-023-00444-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 02/24/2023] [Indexed: 03/12/2023]
Abstract
PURPOSE Hypopituitarism and tumor growth are rare in patients with non-functioning pituitary microadenomas (NFPmA). However, patients often present with non-specific symptoms. The aim of this brief report is to examine presenting symptomatology in patients with NFPmA compared to patients with non-functioning pituitary macroadenomas (NFPMA). METHODS We performed a retrospective review of 400 patients (347 NFPmA and 53 NFPMA) who were conservatively managed; no patients had indications for urgent surgical intervention. RESULTS Average tumor size was 4.5 ± 1.9 and 15.5 ± 5.5 mm for NFPmA and NFPMA, respectively (p < 0.001). At least one pituitary deficiency was present in 7.5% of patients with NFPmA and 25% of patients with NFPMA. Patients with NFPmA were younger (41.6 ± 15.3 vs. 54.4 ± 22.3 years, p < 0.001) and more commonly female (64.6 vs. 49.1%, p = 0.028). There was no significant difference reported for similarly high rates of fatigue (78.4% and 73.6%), headache (70% and 67.9%), and blurry vision (46.7% and 39.6%). There were no significant differences in comorbidities. CONCLUSION Despite smaller size and lower rate of hypopituitarism, patients with NFPmA presented with a high prevalence of headache, fatigue, and visual symptoms. This was not significantly different from patients with NFPMA who were conservatively managed. We conclude that symptoms of NFPmA cannot fully be attributed to pituitary dysfunction or mass effect.
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Affiliation(s)
- Ashley J Han
- School of Medicine, Oregon Health & Science University, Portland, OR, USA
- Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA
| | - Maria Fleseriu
- Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA
- Department of Neurological Surgery, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA
| | - Elena V Varlamov
- Pituitary Center, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA.
- Department of Neurological Surgery, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA.
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine, Oregon Health & Science University, Mail Code CH8N, 3303 South Bond Avenue, Portland, OR, 97239, USA.
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Giraldi E, Allen JW, Ioachimescu AG. Pituitary Incidentalomas: Best Practices and Looking Ahead. Endocr Pract 2023; 29:60-68. [PMID: 36270609 DOI: 10.1016/j.eprac.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/30/2022] [Accepted: 10/11/2022] [Indexed: 01/11/2023]
Abstract
Pituitary Incidentalomas (PI) are pituitary lesions serendipitously identified on imaging. PIs have become common in clinical practice because of increased use of imaging and radiologic advances. The most frequently incidentally detected lesions in adults are pituitary adenomas, followed by cystic lesions, and rarely other types of tumors and infiltrative and inflammatory disorders. Biochemical screening for hyperprolactinemia and acromegaly is needed in all patients with PI, whereas testing for hyposecretion is recommended for lesions larger than 6.0 mm. Most PIs are small nonfunctioning adenomas or cysts, which can be conservatively managed. For larger lesions, a multidisciplinary approach including endocrinology, neurosurgery, and neuro-ophthalmology is required. For incidentally detected lactotroph, somatotroph, and corticotroph adenomas, disease-specific management guidelines apply. Prospective studies are needed to enhance our understanding of the long-term course and response to treatment.
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Affiliation(s)
- Erica Giraldi
- Department of Medicine (Endocrinology), Emory University School of Medicine, Atlanta, Georgia; Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia
| | - Jason W Allen
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia
| | - Adriana G Ioachimescu
- Department of Medicine (Endocrinology), Emory University School of Medicine, Atlanta, Georgia; Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia.
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Melmed S, Kaiser UB, Lopes MB, Bertherat J, Syro LV, Raverot G, Reincke M, Johannsson G, Beckers A, Fleseriu M, Giustina A, Wass JAH, Ho KKY. Clinical Biology of the Pituitary Adenoma. Endocr Rev 2022; 43:1003-1037. [PMID: 35395078 PMCID: PMC9695123 DOI: 10.1210/endrev/bnac010] [Citation(s) in RCA: 80] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Indexed: 02/06/2023]
Abstract
All endocrine glands are susceptible to neoplastic growth, yet the health consequences of these neoplasms differ between endocrine tissues. Pituitary neoplasms are highly prevalent and overwhelmingly benign, exhibiting a spectrum of diverse behaviors and impact on health. To understand the clinical biology of these common yet often innocuous neoplasms, we review pituitary physiology and adenoma epidemiology, pathophysiology, behavior, and clinical consequences. The anterior pituitary develops in response to a range of complex brain signals integrating with intrinsic ectodermal cell transcriptional events that together determine gland growth, cell type differentiation, and hormonal production, in turn maintaining optimal endocrine health. Pituitary adenomas occur in 10% of the population; however, the overwhelming majority remain harmless during life. Triggered by somatic or germline mutations, disease-causing adenomas manifest pathogenic mechanisms that disrupt intrapituitary signaling to promote benign cell proliferation associated with chromosomal instability. Cellular senescence acts as a mechanistic buffer protecting against malignant transformation, an extremely rare event. It is estimated that fewer than one-thousandth of all pituitary adenomas cause clinically significant disease. Adenomas variably and adversely affect morbidity and mortality depending on cell type, hormone secretory activity, and growth behavior. For most clinically apparent adenomas, multimodal therapy controlling hormone secretion and adenoma growth lead to improved quality of life and normalized mortality. The clinical biology of pituitary adenomas, and particularly their benign nature, stands in marked contrast to other tumors of the endocrine system, such as thyroid and neuroendocrine tumors.
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Affiliation(s)
| | - Ursula B Kaiser
- Brigham & Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - M Beatriz Lopes
- University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Jerome Bertherat
- Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Luis V Syro
- Hospital Pablo Tobon Uribe and Clinica Medellin - Grupo Quirónsalud, Medellin, Colombia
| | - Gerald Raverot
- Hospices Civils de Lyon and Lyon 1 University, Lyon, France
| | - Martin Reincke
- University Hospital of LMU, Ludwig-Maximilians-Universität, Munich, Germany
| | - Gudmundur Johannsson
- Sahlgrenska University Hospital & Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | | | | | - Andrea Giustina
- San Raffaele Vita-Salute University and IRCCS Hospital, Milan, Italy
| | | | - Ken K Y Ho
- The Garvan Institute of Medical Research and St. Vincents Hospital, Sydney, Australia
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Ibrahim B, Mandel M, Ali A, Najera E, Obrzut M, Adada B, Borghei-Razavi H. Pituitary Adenomas: Classification, Clinical Evaluation and Management. Skull Base Surg 2022. [DOI: 10.5772/intechopen.103778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pituitary adenomas are one of the most common brain tumors. They represent approximately 18% of all intracranial, and around 95% of sellar neoplasms. In recent years, our understanding of the pathophysiology and the behavior of these lesions has led to better control and higher curative rates. The treatment decision is largely dependent on type of the adenoma, clinical presentation, and the size of the lesion. In addition, incidental pituitary lesions add uncertainty in the decision-making process, especially for pituitary adenomas that can be medically managed. When surgery is indicated, the endoscopic endonasal transsphenoidal approach is the technique of choice, but open standard craniotomy approaches can also be the option in selected cases. The following chapter will review the classification, clinical presentation, pathophysiology, diagnostic work-up, selection of surgical approach, and treatment complications in pituitary adenomas.
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Tahara S, Hattori Y, Suzuki K, Ishisaka E, Teramoto S, Morita A. An Overview of Pituitary Incidentalomas: Diagnosis, Clinical Features, and Management. Cancers (Basel) 2022; 14:cancers14174324. [PMID: 36077858 PMCID: PMC9454484 DOI: 10.3390/cancers14174324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/30/2022] [Accepted: 08/31/2022] [Indexed: 11/21/2022] Open
Abstract
Simple Summary A pituitary incidentaloma is a pituitary tumor or mass that is incidentally discovered in imaging studies which have been performed for reasons other than the symptoms of pituitary lesions. The majority of pituitary incidentalomas are pituitary neuroendocrine tumors (PitNETs) and Rathke cleft cysts. PitNETs have received attention because of their distinction from pituitary adenoma in the new World Health Organization (WHO) classification. The natural history of PitNETs is partially known, and the management of pituitary incidentalomas has been determined based on this history; however, the pathology of PitNETs has significantly changed with the new WHO classification, and studies with a high level of evidence are required to consider treatment guidelines for pituitary incidentalomas. Abstract Pituitary incidentalomas are tumors or mass lesions of the pituitary gland. These are incidentally discovered during imaging studies for symptoms that are not causally related to pituitary diseases. The most common symptom that triggers an examination is headache, and the most common type of pituitary incidentalomas are pituitary neuroendocrine tumors (PitNETs) and Rathke cleft cysts. The existing treatment strategy is controversial; however, surgical resection is recommended in cases of clinically non-functioning PitNETs with optic chiasm compression. In contrast, cystic lesions, such as Rathke cleft cysts, should be followed if the patients are asymptomatic. In this case, MRI and pituitary function tests are recommended every six months to one year; if there is no change, the follow-up period should be extended. The natural history of PitNET is partially known, and the management of pituitary incidentalomas is determined by this history. However, the pathogenesis of PitNET has significantly changed with the new World Health Organization classification, and follow-up is important based on this new classification. Therefore, a high level of evidence-based research is needed to consider treatment guidelines for pituitary incidentalomas in the future.
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Affiliation(s)
- Shigeyuki Tahara
- Department of Neurological Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
- Correspondence:
| | - Yujiro Hattori
- Department of Neurological Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
- Department of Anatomy and Neurobiology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan
| | - Koji Suzuki
- Department of Neurological Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Eitaro Ishisaka
- Department of Neurological Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
| | - Shinichiro Teramoto
- Department of Neurosurgery, Juntendo University School of Medicine, 3-1-3 Hongo, Bunkyo-ku, Tokyo 113-8431, Japan
| | - Akio Morita
- Department of Neurological Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8603, Japan
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10
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Hosseinkhan N, Honardoost M, Emami Z, Cheraghi S, Hashemi-Madani N, Khamseh ME. A systematic review of molecular alterations in invasive non-functioning pituitary adenoma. Endocrine 2022; 77:500-509. [PMID: 35711030 DOI: 10.1007/s12020-022-03105-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 06/03/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Invasive non-functional pituitary adenomas (NFPAs) constitute 35% of NFPAs. Despite a relatively large body of molecular investigations on the invasiveness of NFPA, the underlying molecular mechanisms of invasiveness are yet to be determined. Herein, we aimed to provide an overview of gene/microRNA(miRNAs) expression alterations in invasive NFPA. METHODS This article describes a systematic literature review of articles published up to March 23, 2021, on the transcriptional alterations of invasive NFPA. Five digital libraries were searched, and 42 articles in total fulfilled the eligibility criteria. Pathway enrichment was conducted, and protein interactions among the identified deregulated genes were inferred. RESULTS In total 133 gene/protein transcriptional alterations, comprising 87 increased and 46 decreased expressions, were detected in a collective number of 1001 invasive compared with 1007 non-invasive patients with NFPA. Deregulation of CDH1, PTTG1, CCNB1, SNAI1, SLUG, EZR, and PRKACB, which are associated with epidermal-mesenchymal transition (EMT), was identified. Moreover, six members of the angiogenesis pathway, i.e., VEGFA, FLT1, CCND1, CTNNB1, MYC(c-MYC), and PTTG1, were detected. SLC2A1, FLT1, and VEGFA were also recognized in the hypoxia pathway. Physical interactions of CTNNB1 with FLT1, CCND1, and EZR as well as its indirect interactions with VEGFA, MYC, CCNB1, and PCNA indicate the tight interplay between EMT, angiogenesis, and hypoxia pathways in invasive NFPAs. In addition, Hippo, JAK-STAT, MAPK, Wnt, PI3K-Akt, Ras, TGF-b, VEGF, and ErbB were identified as interwoven signaling pathways. CONCLUSION In conclusion, invasive NFPA shares very common deregulated signaling pathways with invasive cancers. A large amount of heterogeneity in the reported deregulations in different studies necessitates the validation of the expressional changes of the suggested biomarkers in a large number of patients with invasive NFPA.
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Affiliation(s)
- Nazanin Hosseinkhan
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Honardoost
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Emami
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Cheraghi
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Nahid Hashemi-Madani
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad E Khamseh
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran.
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Abstract
The epidemiology of male hypogonadism has been understudied. Of the known causes of endogenous androgen deficiency, only Klinefelter syndrome is common with a likely population prevalence of greater than 5:10,000 men (possibly as high as 10-25:10,000). Mild traumatic injury might also be a common cause of androgen deficiency (prevalence 5-10:10,000 men), but large, long-term studies must be completed to confirm this prevalence estimation that might be too high. The classic causes of male androgen deficiency-hyperprolactinemia, pituitary macroadenoma, endogenous Cushing syndrome, and iron overload syndrome-are rare (prevalence < 10,000 men).
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Affiliation(s)
- Arthi Thirumalai
- Department of Medicine, University of Washington School of Medicine, Box 356420, 1959 Northeast Pacific Avenue, Seattle, WA 98195, USA
| | - Bradley D Anawalt
- Department of Medicine, University of Washington School of Medicine, Box 356420, 1959 Northeast Pacific Avenue, Seattle, WA 98195, USA.
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12
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Han AJ, Varlamov EV, Fleseriu M. Nonfunctioning Pituitary Microadenomas: Should Imaging Interval be Extended? A Large Single-center Cohort Study. J Clin Endocrinol Metab 2022; 107:e1231-e1241. [PMID: 34648635 DOI: 10.1210/clinem/dgab748] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Characterization of the clinical features and natural history of nonfunctioning pituitary microadenomas (NFPmAs) is limited by heterogeneous and small-scale studies. OBJECTIVE To characterize the clinical presentation and natural history of NFPmAs and evaluate if imaging follow-up interval can be extended. METHODS Retrospective single-center cohort study (years 2006-2021) of conservatively managed patients with NFPmAs. Initial symptoms, pituitary function, and tumor size were assessed. A change in NFPmA size ≥2 mm, as determined by pituitary or brain magnetic resonance imaging (MRI), was considered significant. RESULTS There were 347 patients in the study cohort. Headache (78.4%) and fatigue (70.0%) were commonly reported despite no evidence of mass effect or significant pituitary hypofunction. Pituitary deficiencies at baseline were rare, with hypogonadism being most common (5.1%). During a median imaging follow-up period of 29 months (range 3-154), 8.1% of NFPmAs grew. Growth incidence was 2.1 per 100 person-years with a mean and median time to growth of 38.1 (SD ± 36.4) and 24.5 (interquartile range 12.0-70.8) months, respectively. Tumor growth was mild and not associated with new pituitary deficiencies or visual deficits. CONCLUSION These data indicate that the natural history of NFPmAs is overall benign. Consequently, we propose that the initial MRI follow-up timeline for NFPmAs can be extended up to 3 years unless a lesion is close to the optic chiasm, there are worrisome mass effect symptoms, or new pituitary deficiencies.
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Affiliation(s)
- Ashley J Han
- School of Medicine, Oregon Health & Science University, Portland, OR, USA
- Pituitary Center, Oregon Health & Science University, Portland, OR, USA
| | - Elena V Varlamov
- Pituitary Center, Oregon Health & Science University, Portland, OR, USA
- Department of Neurological Surgery, Oregon Health & Science University, Portland, OR, USA
- Department of Medicine, Division of Endocrinology, Diabetes and Nutrition, Oregon Health & Science University, Portland, OR, USA
| | - Maria Fleseriu
- Pituitary Center, Oregon Health & Science University, Portland, OR, USA
- Department of Neurological Surgery, Oregon Health & Science University, Portland, OR, USA
- Department of Medicine, Division of Endocrinology, Diabetes and Nutrition, Oregon Health & Science University, Portland, OR, USA
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Castellanos LE, Gutierrez C, Smith T, Laws ER, Iorgulescu JB. Epidemiology of common and uncommon adult pituitary tumors in the U.S. according to the 2017 World Health Organization classification. Pituitary 2022; 25:201-209. [PMID: 34580820 DOI: 10.1007/s11102-021-01189-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/17/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE To examine the contemporary epidemiology of adult pituitary tumors with a particular focus on uncommon tumor types, using the 2017 WHO Classification of pituitary tumors. METHODS Adult patients presenting with a pituitary or sellar tumor between 2004 and 2017 were identified from the U.S. National Cancer Database, with tumor type categorized according to the 2017 WHO classification. Descriptive epidemiological statistics were evaluated and reported for all pituitary tumor types and subtypes. RESULTS 113,349 adults with pituitary tumors were identified, 53.0% of whom were female. The majority of pituitary tumors were pituitary adenomas (94.0%), followed by craniopharyngiomas (3.8%). Among pituitary adenomas, whereas 71.6% of microadenomas presented in females, only 46.7% of macroadenomas and 41.3% of giant adenomas did (p < 0.001). For craniopharyngiomas, 71.2% were adamantinomatous and 28.8% were papillary, with adamantinomatous tumors associated with Black non-Hispanic race/ethnicity (ORadj = 2.44 vs. White non-Hispanic, 99.9 %CI = 1.25-4.75, p < 0.001) in multivariable analysis. The remaining 0.7% (n = 676) of pathology-confirmed pituitary tumor types were composed of: 21% tumors of the posterior pituitary, 16% chordomas, 11% pituitary carcinomas (i.e. adenohypophyseal histology with metastasis; herein most frequently to bone), 10% meningiomas, 8% germ cell tumors, 7% hematolymphoid (largely DLBCLs), and 4% neuronal/paraneuronal (largely gangliogliomas). Pituitary carcinomas and posterior pituitary tumors demonstrated a male predilection (62.2% and 56.0%, respectively), whereas sellar meningiomas predominated in females (84.1%). Age, race/ethnicity, tumor size, and overall survival further varied across uncommon pituitary tumor types. CONCLUSIONS Our findings provide a detailed contemporary dissection of the epidemiology of common and uncommon adult pituitary tumors in the context of WHO2017.
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Affiliation(s)
- Luz E Castellanos
- Division of Pediatric Endocrinology, Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | | | - Timothy Smith
- Harvard Medical School, Boston, MA, USA
- Department of Neurosurgery, Pituitary and Neuroendocrine Center, Brigham and Women's Hospital, Boston, MA, USA
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's, Boston, MA, USA
| | - Edward R Laws
- Harvard Medical School, Boston, MA, USA
- Department of Neurosurgery, Pituitary and Neuroendocrine Center, Brigham and Women's Hospital, Boston, MA, USA
| | - J Bryan Iorgulescu
- Harvard Medical School, Boston, MA, USA.
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's, Boston, MA, USA.
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Department of Medical Oncology, Dana-Farber Cancer Institute, 75 Francis St., Boston, MA, 02115, USA.
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14
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Abstract
Pituitary incidentalomas are discovered in approximately 10% to 40% of brain images. A complete patient history, physical examination, and dedicated pituitary function testing are needed, and subsequent results should lead to appropriate patient management. However, most lesions are asymptomatic pituitary adenomas or Rathke cleft cysts with a benign course. Many lesions can be clinically significant, including prolactinomas or other pituitary adenomas that warrant specific pituitary disease treatment. In other cases, mass effect causing visual compromise or refractory headache indicates a need for surgery. Here, various facets of a complex evaluation and treatment algorithm for pituitary incidentalomas are reviewed.
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Affiliation(s)
- Fabienne Langlois
- Division of Endocrinology, Department of Medicine, Centre intégré universitaire de santé et de services sociaux de l'Estrie - Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Maria Fleseriu
- Departments of Medicine (Division of Endocrinology, Diabetes and Clinical Nutrition), and Neurological Surgery, and Pituitary Center, Oregon Health & Science University, CH8N 3303 South Bond Avenue, Portland, OR, USA.
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15
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Lamback EB, Wildemberg LE, Gadelha MR. Current opinion on the diagnosis and management of non-functioning pituitary adenomas. Expert Rev Endocrinol Metab 2021; 16:309-320. [PMID: 34678108 DOI: 10.1080/17446651.2021.1988851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/30/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Non-functioning pituitary adenomas (NFPAs) are clinically silent tumors and the second most common pituitary adenoma. Surgery is the mainstay of treatment as there is, as yet, no effective medical treatment. AREAS COVERED We present current knowledge on the clinical diagnosis, histopathological classification, molecular data, and management strategies in NFPA. EXPERT OPINION NFPA is a heterogeneous group of tumors, in respect to their origin and clinical course. In recent years, research on pathology and molecular biology have advanced our knowledge of NFPA pathogenesis. NFPA exhibit, in the majority of cases, an indolent behavior, with satisfactory response to treatment. In aggressive cases, multimodal management is needed; however, even this approach may be insufficient, so the development of new treatments is warranted for better management. In this setting, the understanding of the mechanisms involved in the genesis and progression of NFPA is crucial for the identification and development of directed treatments with higher chances of response.
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Affiliation(s)
- Elisa B Lamback
- Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Rio De Janeiro, Brazil
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
- Neuroendocrine Unit, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
| | - Luiz Eduardo Wildemberg
- Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Rio De Janeiro, Brazil
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
- Neuroendocrine Unit, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
| | - Mônica R Gadelha
- Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Rio De Janeiro, Brazil
- Neuropathology and Molecular Genetics Laboratory, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
- Neuroendocrine Unit, Instituto Estadual Do Cérebro Paulo Niemeyer, Rio De Janeiro, Brazil
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16
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Abstract
Pituitary incidentalomas (PI) are lesions of the pituitary region discovered fortuitously by imaging for reasons unrelated to pituitary disease. They range from small cysts to large invasive adenomas. All over the world, improvements in the quality and availability of radiological examinations are leading to an increase in the discovery of PI. In the last four decades, significant advances have been made in the understanding of PI. Autopsy studies have shown that about 10% of deceased individuals harbour a PI, most often a non-functioning microadenoma. In contrast, modern patient series showed that among PIs that come to endocrinological attention, a significant proportion are macroadenomas, and many patients suffer from asymptomatic or pauci-symptomatic endocrine or ophthalmologic disturbances. Other than adenomas, empty sella, Rathke's cleft cyst, craniopharyngioma and meningioma are the most frequent types of PIs. About 10% of micro-incidentalomas and 25% of macro-incidentalomas grow over time. Most cases can be managed conservatively by mere surveillance. Follow-up is necessary in all patients with macroadenoma, but uncertainty remains for microadenomas as to the extent of endocrinological work-up as well as the necessity and duration of follow-up. Visual and endocrine anomalies constitute the most common indications for surgery. When needed, surgery yields better outcome in PIs than in symptomatic pituitary lesions.
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17
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Asa SL, Mete O, Cusimano MD, McCutcheon IE, Perry A, Yamada S, Nishioka H, Casar-Borota O, Uccella S, La Rosa S, Grossman AB, Ezzat S. Pituitary neuroendocrine tumors: a model for neuroendocrine tumor classification. Mod Pathol 2021; 34:1634-1650. [PMID: 34017065 DOI: 10.1038/s41379-021-00820-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/25/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
The classification of adenohypophysial neoplasms as "pituitary neuroendocrine tumors" (PitNETs) was proposed in 2017 to reflect their characteristics as epithelial neuroendocrine neoplasms with a spectrum of clinical behaviors ranging from small indolent lesions to large, locally invasive, unresectable tumors. Tumor growth and hormone hypersecretion cause significant morbidity and mortality in a subset of patients. The proposal was endorsed by a WHO working group that sought to provide a unified approach to neuroendocrine neoplasia in all body sites. We review the features that are characteristic of neuroendocrine cells, the epidemiology and prognosis of these tumors, as well as further refinements in terms used for other pituitary tumors to ensure consistency with the WHO framework. The intense study of PitNETs has provided information about the importance of cellular differentiation in tumor prognosis as a model for neuroendocrine tumors in different locations.
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Affiliation(s)
- Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA.
| | - Ozgur Mete
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Michael D Cusimano
- Department of Neurosurgery, Saint Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Ian E McCutcheon
- Department of Neurosurgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Arie Perry
- Department of Pathology, University of California San Francisco, San Francisco, CA, USA
| | - Shozo Yamada
- Hypothalamic and Pituitary Center, Moriyama Neurological Center Hospital, Tokyo, Japan
| | - Hiroshi Nishioka
- Department of Hypothalamic and Pituitary Surgery, Toranomon Hospital, Tokyo, Japan
| | - Olivera Casar-Borota
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Silvia Uccella
- Department of Pathology, University of Insubria, Varese, Italy
| | - Stefano La Rosa
- Institute of Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Ashley B Grossman
- Department of Endocrinology, University of Oxford, London, UK.,Royal Free London, London, UK.,Barts and the London School of Medicine, London, UK.,London Clinic Centre for Endocrinology, London, UK
| | - Shereen Ezzat
- Department of Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
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18
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Alexopoulou O, Everard V, Etoa M, Fomekong E, Gaillard S, Parker F, Raftopoulos C, Chanson P, Maiter D. Outcome of pituitary hormone deficits after surgical treatment of nonfunctioning pituitary macroadenomas. Endocrine 2021; 73:166-176. [PMID: 33852154 DOI: 10.1007/s12020-021-02701-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/16/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Nonfunctionning pituitary macroadenomas (NFPMA) are benign tumors that cause symptoms of mass effects including hypopituitarism. Their primary treatment is transsphenoidal surgery. We aimed to determine the outcome of pituitary hormone deficits after surgical treatment of NFPMA and to identify factors predicting hormonal recovery. DESIGN We retrospectively included 246 patients with NFPMA diagnosed and operated in one of the two participating centers. All hormonal axes were evaluated except growth hormone (GH). Postoperative improvement of pituitary endocrine function was considered if at least one hormonal deficit had recovered and a lower total number of deficits was observed 1 year after surgery. RESULTS 80% (n = 197) of patients had one or more pituitary deficits and 28% had complete anterior hypopituitarism. Besides GH, the gonadotropic and thyrotropic axes were the most commonly affected (68% and 62%, respectively). The number of hypopituitary patients dropped significantly to 61% at 1 year (p < 0.001) and a significant improvement was observed for all hormonal axes, except central diabetes insipidus. Among patients with preoperative hypopituitarism, 88/175 (50%) showed improved pituitary function at 1 year. Both hyperprolactinemia at diagnosis and a lower tumor diameter independently predicted favorable endocrine outcome. CONCLUSIONS Hypopituitarism is present in 80% of patients with NFPMA and nearly half of them will benefit from sustained improvement after surgery. Hyperprolactinaemia at diagnosis and lower tumor dimensions are associated with favorable endocrine prognosis. This supports the option of early surgery in NFPMA patients with pituitary deficits independent of the presence of visual disturbances.
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Affiliation(s)
- Orsalia Alexopoulou
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium.
| | - Valérie Everard
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Martine Etoa
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, Le Kremlin-Bicêtre, France
| | - Edward Fomekong
- Department of Neurosurgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | | | - Fabrice Parker
- Assistance Publique-Hôpitaux de Paris, Service de Neurochirurgie, Hopital Bicêtre, Le Kremlin-Bicêtre, France
| | - Christian Raftopoulos
- Department of Neurosurgery, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Philippe Chanson
- Assistance Publique-Hôpitaux de Paris, Hôpital Bicêtre, Service d'Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l'Hypophyse, Le Kremlin-Bicêtre, France
- Inserm, Physiologie et Physiopathologie Endocriniennes, Université Paris-Saclay, Le Kremlin- Bicêtre, France
| | - Dominique Maiter
- Department of Endocrinology and Nutrition, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
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