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Fainstein-Day P, Ullmann TE, Dalurzo MCL, Sevlever GE, Smith DE. The clinical and biochemical spectrum of ectopic acromegaly. Best Pract Res Clin Endocrinol Metab 2024; 38:101877. [PMID: 38413286 DOI: 10.1016/j.beem.2024.101877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Ectopic acromegaly is a rare condition caused by extrapituitary central or peripheral neuroendocrine tumours (NET) that hypersecrete GH or, more commonly, GHRH. It affects less than 1% of acromegaly patients and a misdiagnosis of classic acromegaly can lead to an inappropriate pituitary surgery. Four types of ectopic acromegaly have been described: 1) Central ectopic GH-secretion: Careful cross-sectional imaging is required to exclude ectopic pituitary adenomas. 2) Peripheral GH secretion: Extremely rare. 3) Central ectopic GHRH secretion: Sellar gangliocytomas immunohistochemically positive for GHRH are found after pituitary surgery. 4) Peripheral GHRH secretion: The most common type of ectopic acromegaly is due to peripheral GHRH-secreting NETs. Tumours are large and usually located in the lungs or pancreas. Pituitary hyperplasia resulting from chronic GHRH stimulation is difficult to detect or can be misinterpreted as pituitary adenoma in the MRI. Measurement of serum GHRH levels is a specific and useful diagnostic tool. Surgery of GHRH-secreting NETs is often curative.
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Affiliation(s)
- Patricia Fainstein-Day
- Endocrinology, Metabolism and Nuclear Medicine Department, Hospital Italiano de Buenos Aires (HIBA), Instituto de Medicina Traslacional e Ingeniería Biomédica (IMTIB), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto Universitario del Hospital Italiano de Buenos Aires, Tte. Gral. Juan Domingo Perón 4190, Buenos Aires, CP C1199ABB, Argentina.
| | - Tamara Estefanía Ullmann
- Endocrinology, Metabolism and Nuclear Medicine Department, Hospital Italiano de Buenos Aires (HIBA), Tte. Gral. Juan Domingo Perón 4190, Buenos Aires, CP C1199ABB, Argentina.
| | - Mercedes Corina Liliana Dalurzo
- Pathology Department, Hospital Italiano de Buenos Aires (HIBA), Tte. Gral. Juan Domingo Perón 4190, Buenos Aires, CP C1199ABB, Argentina.
| | - Gustavo Emilio Sevlever
- Department of Neuropathology and Molecular Biology. Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Montañeses 2325, C1428AQK Buenos Aires, Argentina.
| | - David Eduardo Smith
- General Surgery Department, Hospital Italiano de Buenos Aires (HIBA), Argentina.
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Potorac I, Bonneville JF, Daly AF, de Herder W, Fainstein-Day P, Chanson P, Korbonits M, Cordido F, Baranski Lamback E, Abid M, Raverot V, Raverot G, Anda Apiñániz E, Caron P, Du Boullay H, Bildingmaier M, Bolanowski M, Laloi-Michelin M, Borson-Chazot F, Chabre O, Christin-Maitre S, Briet C, Diaz-Soto G, Bonneville F, Castinetti F, Gadelha MR, Oliveira Santana N, Stelmachowska-Banaś M, Gudbjartsson T, Villar-Taibo R, Zornitzki T, Tshibanda L, Petrossians P, Beckers A. Pituitary MRI Features in Acromegaly Resulting From Ectopic GHRH Secretion From a Neuroendocrine Tumor: Analysis of 30 Cases. J Clin Endocrinol Metab 2022; 107:e3313-e3320. [PMID: 35512251 DOI: 10.1210/clinem/dgac274] [Citation(s) in RCA: 4] [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: 11/09/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Ectopic acromegaly is a consequence of rare neuroendocrine tumors (NETs) that secrete GHRH. This abnormal GHRH secretion drives GH and IGF-1 excess, with a clinical presentation similar to classical pituitary acromegaly. Identifying the underlying cause for the GH hypersecretion in the setting of ectopic GHRH excess is, however, essential for proper management both of acromegaly and the NET. Owing to the rarity of NETs, the imaging characteristics of the pituitary in ectopic acromegaly have not been analyzed in depth in a large series. OBJECTIVE Characterize pituitary magnetic resonance imaging (MRI) features at baseline and after NET treatment in patients with ectopic acromegaly. DESIGN Multicenter, international, retrospective. SETTING Tertiary referral pituitary centers. PATIENTS Thirty ectopic acromegaly patients having GHRH hypersecretion. INTERVENTION None. MAIN OUTCOME MEASURE MRI characteristics of pituitary gland, particularly T2-weighted signal. RESULTS In 30 patients with ectopic GHRH-induced acromegaly, we found that most patients had hyperplastic pituitaries. Hyperplasia was usually moderate but was occasionally subtle, with only small volume increases compared with normal ranges for age and sex. T2-weighted signal was hypointense in most patients, especially in those with hyperplastic pituitaries. After treatment of the NET, pituitary size diminished and T2-weighted signal tended to normalize. CONCLUSIONS This comprehensive study of pituitary MRI characteristics in ectopic acromegaly underlines the utility of performing T2-weighted sequences in the MRI evaluation of patients with acromegaly as an additional tool that can help to establish the correct diagnosis.
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Affiliation(s)
- Iulia Potorac
- Departments of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
| | - Jean-François Bonneville
- Departments of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
- Medical Imaging, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
| | - Adrian F Daly
- Departments of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
| | - Wouter de Herder
- Department of Internal Medicine, Section of Endocrinology, Erasmus University Medical Center, 3015 GD, Rotterdam, The Netherlands
| | - Patricia Fainstein-Day
- Department of Endocrinology, Hospital Italiano de Buenos Aires, 1199, Buenos Aires, Argentina
| | - Philippe Chanson
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, 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 HYPO, 94270 Le Kremlin-Bicêtre, France
| | - Marta Korbonits
- Centre for Endocrinology, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Fernando Cordido
- Department of Endocrinology, University Hospital A Coruña, 15006 A Coruña, Spain
| | - Elisa Baranski Lamback
- Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, 21941-617 Rio de Janeiro, Brazil
| | - Mohamed Abid
- Department of Endocrinology, Hedi Chaker Hospital, 3000 Sfax, Tunis
| | - Véronique Raverot
- Biochemistry Laboratory Department, Groupement Hospitalier Est, Hospices Civils de Lyon, 69002 Lyon, France
| | - Gerald Raverot
- Fédération d'Endocrinologie, Centre de Référence des Maladies Rares Hypophysaires HYPO, Groupement Hospitalier Est, Hospices Civils de Lyon, 69002 Lyon, France
| | - Emma Anda Apiñániz
- Department of Endocrinology and Nutrition, Complejo Hospitalario de Navarra, 31008 Pamplona, Spain
| | - Philippe Caron
- Service d'Endocrinologie et Maladies Métaboliques, Centre Hospitalier Universitaire de Toulouse, 31300 Toulouse, France
| | - Helene Du Boullay
- Department of Endocrinology, General Hospital of Chambéry, 73000 Chambéry, France
| | - Martin Bildingmaier
- Department for Endocrinology, Medizinische Klinik und Poliklinik IV, Ludwig-Maximilians-University, 80539 Munich, Germany
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, 50-367 Wroclaw, Poland
| | - Marie Laloi-Michelin
- Department of Diabetes and Endocrinology, Lariboisière Hospital, 75010 Paris, France
| | - Francoise Borson-Chazot
- Hospices Civils de Lyon, Fédération d'Endocrinologie, Université Claude Bernard Lyon 1, 69002 Lyon, France
| | - Olivier Chabre
- Service d'Endocrinologie, Centre Hospitalier Universitaire de Grenoble, 38700 La Tronche, France
| | - Sophie Christin-Maitre
- Department of Endocrinology, Hôpital St Antoine, AP-HP, Sorbonne University, 75012 Paris, France
| | - Claire Briet
- Service d'endocrinologie, diabétologie et nutrition, CHU d'Angers, 49100 Angers, France
| | - Gonzalo Diaz-Soto
- Servicio de Endocrinología y Nutrición, Hospital Clínico Universitario de Valladolid, 47003 Valladolid, Spain
| | - Fabrice Bonneville
- Department of Neuroradiology, University Hospital Purpan, 31300 Toulouse, France
| | - Frederic Castinetti
- Department of Endocrinology, Aix Marseille Université, 13007 Marseille, France
| | - Mônica R Gadelha
- Neuroendocrinology Research Center/Endocrinology Division, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, 21941-617 Rio de Janeiro, Brazil
| | - Nathalie Oliveira Santana
- Laboratório de Endocrinologia Celular e Molecular (LIM25), Hospital das Clínicas da Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP 05403-000, Brasil
| | | | - Tomas Gudbjartsson
- Department of Cardiothoracic Surgery, Landspitali University Hospital, Faculty of Medicine, University of Iceland, 101 Reykjavik, Iceland
| | - Roció Villar-Taibo
- Endocrinology and Nutrition Department, Complejo Hospitalario Universitario de Santiago de Compostela, 15706 Santiago de Compostela, Spain
| | - Taiba Zornitzki
- Diabetes, Endocrinology and Metabolic Disease Institute, Kaplan Medical Center, Hebrew University Medical School, Rehovot 76100, Israel
| | - Luaba Tshibanda
- Medical Imaging, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
| | - Patrick Petrossians
- Departments of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
| | - Albert Beckers
- Departments of Endocrinology, Centre Hospitalier de Liège, Université de Liège, Domaine Universitaire du Sart Tilman, 4000 Liège, Belgium
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Zendran I, Gut G, Kałużny M, Zawadzka K, Bolanowski M. Acromegaly Caused by Ectopic Growth Hormone Releasing Hormone Secretion: A Review. Front Endocrinol (Lausanne) 2022; 13:867965. [PMID: 35757397 PMCID: PMC9218487 DOI: 10.3389/fendo.2022.867965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/14/2022] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Ectopic acromegaly is a rare condition caused most frequently by growth hormone releasing hormone (GHRH) secretion from neuroendocrine tumors. The diagnosis is often difficult to establish as its main symptoms do not differ from those of acromegaly of pituitary origin. OBJECTIVES To determine most common clinical features and diagnostic challenges in ectopic acromegaly. PATIENTS AND METHODS A search for ectopic acromegaly cases available in literature was performed using PubMed, Cochrane, and MEDline database. In this article, 127 cases of ectopic acromegaly described after GHRH isolation in 1982 are comprehensively reviewed, along with a summary of current state of knowledge on its clinical features, diagnostic methods, and treatment modalities. The most important data were compiled and compared in the tables. RESULTS Neuroendocrine tumors were confirmed in 119 out of 121 patients with histopathological evaluation, mostly of lung and pancreatic origin. Clinical manifestation comprise symptoms associated with pituitary hyperplasia, such as headache or visual field disturbances, as well as typical signs of acromegaly. Other endocrinopathies may also be present depending on the tumor type. Definitive diagnosis of ectopic acromegaly requires confirmation of GHRH secretion from a tumor using either histopathological methods or GHRH plasma concentration assessment. Hormonal evaluation was available for 84 patients (66%) and histopathological confirmation for 99 cases (78%). Complete tumor resection was the main treatment method for most patients as it is a treatment of choice due to its highest effectiveness. When not feasible, somatostatin receptor ligands (SRL) therapy is the preferred treatment option. Prognosis is relatively favorable for neuroendocrine GHRH-secreting tumors with high survival rate. CONCLUSION Although ectopic acromegaly remains a rare disease, one should be aware of it as a possible differential diagnosis in patients presenting with additional symptoms or those not responding to classic treatment of acromegaly.
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Affiliation(s)
- Iga Zendran
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland
| | - Gabriela Gut
- Department of Endocrinology, Diabetes and Isotope Therapy, Students research association, Wroclaw Medical University, Wroclaw, Poland
| | - Marcin Kałużny
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland
- *Correspondence: Marcin Kałużny,
| | - Katarzyna Zawadzka
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, Wroclaw, Poland
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Gosain R, Mukherjee S, Yendamuri SS, Iyer R. Management of Typical and Atypical Pulmonary Carcinoids Based on Different Established Guidelines. Cancers (Basel) 2018; 10:E510. [PMID: 30545054 PMCID: PMC6315766 DOI: 10.3390/cancers10120510] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 12/12/2022] Open
Abstract
Neuroendocrine tumors (NETs) are a group of malignancies that originated from neuroendocrine cells, with the most common sites being lungs and the gastrointestinal tract. Lung NETs comprise 25% of all lung malignancies. Small cell lung cancer is the most common form of lung NETs, and other rare forms include well-differentiated typical carcinoids (TCs) and poorly differentiated atypical carcinoids (ACs). Given the paucity of randomized studies, rational treatment is challenging. Therefore, it is recommended that these decisions be made using a multidisciplinary collaborative approach. Surgery remains the mainstay of treatment, when feasible. Following surgery, various guidelines offer different recommendations in the adjuvant setting. In this paper, we describe the adjuvant management of lung NETs, as recommended by different guidelines, and highlight their differences. In addition to that, we also discuss the management of metastatic lung NETS, including the use of peptide receptor radionucleotide therapy.
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Affiliation(s)
- Rohit Gosain
- Division of Hematology & Oncology, Roswell Park Comprehensive Cancer Center, University at Buffalo School of Medicine, Buffalo, NY 14203, USA.
| | - Sarbajit Mukherjee
- Division of Hematology & Oncology, Roswell Park Comprehensive Cancer Center, University at Buffalo School of Medicine, Buffalo, NY 14203, USA.
- Division of Hematology & Oncology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Sai S Yendamuri
- Depart of Thoracic Surgery Oncology, Roswell Park Comprehensive Cancer Center, University at Buffalo School of Medicine, Buffalo, NY 14203, USA.
| | - Renuka Iyer
- Division of Hematology & Oncology, Roswell Park Comprehensive Cancer Center, University at Buffalo School of Medicine, Buffalo, NY 14203, USA.
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Dimitriadis GK, Angelousi A, Weickert MO, Randeva HS, Kaltsas G, Grossman A. Paraneoplastic endocrine syndromes. Endocr Relat Cancer 2017; 24:R173-R190. [PMID: 28341725 DOI: 10.1530/erc-17-0036] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 03/24/2017] [Indexed: 12/13/2022]
Abstract
The majority of neoplasms are responsible for symptoms caused by mass effects to surrounding tissues and/or through the development of metastases. However, occasionally neoplasms, with or without endocrine differentiation, acquire the ability to secrete a variety of bioactive substances or induce immune cross-reactivity with the normal tissues that can lead to the development of characteristic clinical syndromes. These syndromes are named endocrine paraneoplastic syndromes when the specific secretory components (hormones, peptides or cytokines) are unrelated to the anticipated tissue or organ of origin. Endocrine paraneoplastic syndromes can complicate the patient's clinical course, response to treatment, impact prognosis and even be confused as metastatic spread. These syndromes can precede, occur concomitantly or present at a later stage of tumour development, and along with the secreted substances constitute the biological 'fingerprint' of the tumour. Their detection can facilitate early diagnosis of the underlying neoplasia, monitor response to treatment and/or detect early recurrences following successful initial management. Although when associated with tumours of low malignant potential they usually do not affect long-term outcome, in cases of highly malignant tumours, endocrine paraneoplastic syndromes are usually associated with poorer survival outcomes. Recent medical advances have not only improved our understanding of paraneoplastic syndrome pathogenesis in general but also enhanced their diagnosis and treatment. Yet, given the rarity of endocrine paraneoplastic syndromes, there is a paucity of prospective clinical trials to guide management. The development of well-designed prospective multicentre trials remains a priority in the field in order to fully characterise these syndromes and provide evidence-based diagnostic and therapeutic protocols.
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Affiliation(s)
- Georgios K Dimitriadis
- The Arden NET CoEWarwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Anna Angelousi
- Division of PathophysiologyNational and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Martin O Weickert
- The Arden NET CoEWarwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Harpal S Randeva
- The Arden NET CoEWarwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, UK
| | - Gregory Kaltsas
- The Arden NET CoEWarwickshire Institute for the Study of Diabetes, Endocrinology and Metabolism (WISDEM), University Hospitals of Coventry and Warwickshire NHS Trust, Coventry, UK
- Division of PathophysiologyNational and Kapodistrian University of Athens Medical School, Athens, Greece
- Oxford Centre for DiabetesEndocrinology and Metabolism, University of Oxford, Oxford, UK
| | - Ashley Grossman
- Oxford Centre for DiabetesEndocrinology and Metabolism, University of Oxford, Oxford, UK
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Acromegaly in a patient with a pulmonary neuroendocrine tumor: case report and review of current literature. BMC Res Notes 2016; 9:326. [PMID: 27349224 PMCID: PMC4924317 DOI: 10.1186/s13104-016-2132-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 06/18/2016] [Indexed: 12/16/2022] Open
Abstract
Background Pulmonary neuroendocrine tumors (NET) form a heterogeneous group of rare diseases. In these tumors, paraneoplastic syndromes have been described to drive the course of the disease, among them acromegaly induced by paraneoplastic secretion of growth hormone-releasing hormone (GHRH). Case presentation We report the case of a 43 years old patient initially diagnosed with acromegaly accompanied by weight gain and acral enlargement. Subsequently, further diagnostic work-up identified a solitary pulmonary neuroendocrine tumor (NET). Laboratory tests revealed markedly increased growth hormone (GH) and insulin-like growth factor 1 (IGF-1) without GHRH elevation in the absence of pituitary pathologies confirming the paraneoplastic origin of clinical presentation with acromegaly. Curative surgery was performed leading to normalization of the elevated hormone levels and improvement of the clinical symptoms. Immunohistochemically, a typical carcinoid (TC) was seen with low proliferation index and abundant IGF-1 expression. Conclusions The association of acromegaly and pulmonary NET has only rarely been reported. We present an individual case of paraneoplastic GH- and IGF-1 secretion in a patient with pulmonary NET. Based on their rarity, the knowledge of paraneoplastic syndromes occurring in patients with pulmonary NET such as acromegaly due to paraneoplastic GH- and IGF-1 secretion is mandatory to adequately diagnose and treat these patients.
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Keskin O, Yalcin S. A review of the use of somatostatin analogs in oncology. Onco Targets Ther 2013; 6:471-83. [PMID: 23667314 PMCID: PMC3650572 DOI: 10.2147/ott.s39987] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Indexed: 12/12/2022] Open
Abstract
Somatostatin is a neuropeptide produced by paracrine cells that are located throughout the gastrointestinal tract, lung, and pancreas, and is also found in various locations of the nervous system. It exerts neural control over many physiological functions including inhibition of gastrointestinal endocrine secretion through its receptors. Potent and biologically stable analogs of somatostatin have been developed. These somatostatin analogs show different efficacy on different receptors, and receptors are varyingly concentrated in specific tissues. Antitumor and antisecretory effects of somatostatin analogs in cancer have been shown in several in vivo and in vitro studies. However, these activities have not always yielded into clinically relevant patient outcome benefit. Somatostatin analogs are of clinical benefit in treating symptoms of ectopic hormone secretion (adrenocorticotropic hormone, growth hormone-releasing hormone) in lung cancer, without inducing a significant tumor response. They have also been shown to induce a statistically significant decrease in bone pain and increase in Karnofsky performance status in patients with metastatic prostate cancer. Somatostatin analogs alone or in combination with other agents have only limited antitumoral effect in breast cancer. In gastrointestinal cancers, studies have not shown an objective tumor response to somatostatin analogs except in endocrine tumors of the liver with symptomatic and biochemical improvement. In neuroendocrine tumors of the gastrointestinal system and pancreas, very high symptomatic and biochemical response rates have been achieved with somatostatin analogs. Antiproliferative activity has been clearly shown in metastatic midgut neuroendocrine tumors.
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Affiliation(s)
- Ozge Keskin
- Department of Medical Oncology, Hacettepe University Institute of Cancer, Ankara, Turkey
| | - Suayib Yalcin
- Department of Medical Oncology, Hacettepe University Institute of Cancer, Ankara, Turkey
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Ghazi AA, Amirbaigloo A, Dezfooli AA, Saadat N, Ghazi S, Pourafkari M, Tirgari F, Dhall D, Bannykh S, Melmed S, Cooper O. Ectopic acromegaly due to growth hormone releasing hormone. Endocrine 2013; 43:293-302. [PMID: 22983831 PMCID: PMC3553305 DOI: 10.1007/s12020-012-9790-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Accepted: 08/31/2012] [Indexed: 12/20/2022]
Abstract
Acromegaly secondary to extra-pituitary tumors secreting growth hormone releasing hormone (GHRH) is rarely encountered. We review the literature on ectopic acromegaly and present the index report of ectopic acromegaly secondary to GHRH secretion from a mediastinal paraganglioma. Clinical and pathological manifestations and therapeutic management of 99 patients with ectopic acromegaly are reviewed. Acromegaly secondary to ectopic GHRH secretion is usually caused by a neuroendocrine tumor in the lung and pancreas. We report an additional cause of ectopic acromegaly from a mediastinal paraganglioma. Diagnostic criteria of ectopic GHRH syndrome include biochemical and pathologic tumoral confirmation of GHRH secretion and expression. Management of ectopic acromegaly consists of surgical resection of the primary tumor and biochemical normalization, with possible adjuvant use of somatostatin analogs. The review demonstrates that there are several tumor types, including paragangliomas which may secrete GHRH, leading to acromegaly. Clinical and laboratory manifestations of the syndrome and challenges in diagnosis and management of these rarely encountered patients require early diagnosis and appropriate treatment to prevent long-term morbidity and mortality with ectopic acromegaly.
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Affiliation(s)
- Ali A Ghazi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Amirbaigloo
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Azizollah Abbasi Dezfooli
- Department of Thoracic Surgery, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Navid Saadat
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Siavash Ghazi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marina Pourafkari
- Department of Radiology, Taleghani General Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farrokh Tirgari
- Department of pathology, Imam Khomeini General Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Dheepti Dhall
- Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Serguei Bannykh
- Department of Pathology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Shlomo Melmed
- Pituitary Center, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Odelia Cooper
- Pituitary Center, Cedars-Sinai Medical Center, Los Angeles, California, USA
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Garby L, Caron P, Claustrat F, Chanson P, Tabarin A, Rohmer V, Arnault G, Bonnet F, Chabre O, Christin-Maitre S, du-Boullay H, Murat A, Nakib I, Sadoul JL, Sassolas G, Claustrat B, Raverot G, Borson-Chazot F. Clinical characteristics and outcome of acromegaly induced by ectopic secretion of growth hormone-releasing hormone (GHRH): a French nationwide series of 21 cases. J Clin Endocrinol Metab 2012; 97:2093-104. [PMID: 22442262 DOI: 10.1210/jc.2011-2930] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
CONTEXT Ectopic GHRH secretion is a rare cause of acromegaly, and case reports are mainly isolated. SETTING From the registry of the sole laboratory performing plasma GHRH assays in France, we identified cases of ectopic GHRH secretion presenting with acromegaly between 1983 and 2008. PATIENTS Twenty-one patients aged 14-77 yr were identified from 12 French hospitals. Median GHRH was 548 (270-9779) ng/liter. MAIN OUTCOME MEASURES Outcome measures included description of tumor features and outcome and the relation between plasma GHRH values and tumor site, size, and spread. RESULTS The primary neuroendocrine tumor was identified for 20 of 21 patients (12 pancreatic, seven bronchial, one appendicular). Tumors were large (10-80 mm), identified on computed tomography scan in 18 cases and by endoscopic ultrasound and somatostatin receptor scintigraphy in two. Somatostatin receptor scintigraphy had a similar sensitivity to computed tomography scan (81 vs. 86%). Tumors were all well differentiated; 47.6% had metastasized at the time of diagnosis of acromegaly. After a median follow-up of 5 yr, 85% of patients were alive. Ninety-one percent of patients whose tumor was completely removed were considered in remission, and most had normalized plasma GHRH. The remaining patients were treated with somatostatin analogs: IGF-I normalized except for one patient who required pegvisomant, but GHRH levels remained elevated. No correlations were found between GHRH levels and tumor site or size or the existence of metastases. Identification of increased plasma GHRH during follow-up was an accurate indicator of recurrence. CONCLUSIONS The prognosis of endocrine tumors responsible for GHRH secretion appears relatively good. Plasma GHRH assay is an accurate tool for diagnosis and follow-up.
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Mnif Feki M, Mnif F, Kamoun M, Charfi N, Rekik N, Naceur BB, Mnif L, Boudawara TS, Abid M. Ectopic secretion of GHRH by a pancreatic neuroendocrine tumor associated with an empty sella. ANNALES D'ENDOCRINOLOGIE 2011; 72:522-5. [PMID: 21963237 DOI: 10.1016/j.ando.2011.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 06/08/2011] [Accepted: 06/10/2011] [Indexed: 11/29/2022]
Abstract
Acromegaly is usually the result of a pituitary growth hormone cell-adenoma or is more rarely due to ectopic secretion of growth hormone releasing hormone (GHRH).We report the case of a 60-year-old woman with acromegaly due to a GH-RH-secreting pancreatic tumor. Laboratory evaluation confirmed the diagnosis of acromegaly. Magnetic resonance imaging revealed a partial empty sella with no signs of adenoma. Ultrasound sonography performed for abdominal pains showed a calcified large heterogeneous infrahepatic mass. Computed tomography scan discovered a heterogeneous pancreatic head mass with a diameter of 10cm. Measurement of fasting plasma GHRH was performed showing a high concentration of 604ng/L (normal 10-60). We therefore concluded that the acromegaly was caused by ectopic overproduction of GHRH likely due to the pancreatic tumor. The patient underwent a cephalic duodenopancreatectomy. Histology revealed a well-circumscribed tumor with organoid architecture. Immunohistochemistry demonstrated diffuse positivity for chromogranin A, neuronal specific enolase and synaptophysin and negative immunoreactivity for prolactin, GH and serotonin. These features were concordant with a well-differentiated neuroendocrine tumor of the pancreas. Surgical resection of this pancreatic tumor was followed by significant amelioration of acromegalic signs and normalization of GHRH and GH levels.
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Affiliation(s)
- Mouna Mnif Feki
- Endocrinology Department, Hedi Chaker Hospital, Magida Boulila Avenue, 3029 Sfax, Tunisia.
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11
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Cakir M, Grossman A. The molecular pathogenesis and management of bronchial carcinoids. Expert Opin Ther Targets 2011; 15:457-91. [DOI: 10.1517/14728222.2011.555403] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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12
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Verrua E, Ronchi CL, Ferrante E, Ferrari DI, Bergamaschi S, Ferrero S, Zatelli MC, Branca V, Spada A, Beck-Peccoz P, Lania AG. Acromegaly secondary to an incidentally discovered growth-hormone-releasing hormone secreting bronchial carcinoid tumour associated to a pituitary incidentaloma. Pituitary 2010; 13:289-92. [PMID: 18946740 DOI: 10.1007/s11102-008-0146-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In this report we emphasize the opportunity of considering the uncommon causes of chronic GH-excess in the initial diagnostic process, such as GHRH hypersecretion, especially in the presence of ambiguous pituitary neuroimaging. This topic may have an important clinical significance in order to plan the most cost-effective diagnostic procedures and management and to avoid unnecessary pituitary neurosurgery.
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Affiliation(s)
- E Verrua
- Unit of Endocrinology, Department of Medical Sciences, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, University of Milan, Via F. Sforza 35, 20122, Milan, Italy
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13
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Bibliography. Current world literature. Diabetes and the endocrine pancreas II. Curr Opin Endocrinol Diabetes Obes 2008; 15:383-93. [PMID: 18594281 DOI: 10.1097/med.0b013e32830c6b8e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Yoshida D, Nomura R, Teramoto A. Regulation of cell invasion and signalling pathways in the pituitary adenoma cell line, HP-75, by reversion-inducing cysteine-rich protein with kazal motifs (RECK). J Neurooncol 2008; 89:141-50. [PMID: 18493720 DOI: 10.1007/s11060-008-9606-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2008] [Accepted: 04/22/2008] [Indexed: 10/22/2022]
Abstract
Degradation and remodelling of the extracellular matrix has been investigated, with the main focus on the balance between matrix metalloproteinases (MMP) and tissue inhibitor of metalloproteinases (TIMP). Recent reports disclose the presence of a novel MMP-inhibiting cell membrane-anchored glycoprotein designated 'reversion-inducing cysteine-rich protein with Kazal motifs' (RECK). Our main aim in this study was to elucidate the role of RECK in cell invasion of pituitary adenomas and its contribution to signal transduction. The function of RECK in cell invasion was investigated by comparing data obtained from full-length RECK clone transfection and gene silencing with RECK mRNA-targeting siRNA. RECK expression was confirmed using real-time RT-PCR and Western blotting. Levels of matrix metalloproteinases (MMP-2 and -9) and TIMP-1 were measured by zymography and reverse zymography, respectively. Cell invasion was examined with a 3-D invasion assay. The signal cascade was investigated by cDNA microarray analysis. As expected, expression of RECK was elevated upon cDNA transfection, and diminished using siRNA. We observed elevation of MMP-2 and -9 expression and consequent 3-D cell invasion in cells under-expressing RECK. However, TIMP expression was not affected by RECK. Analysis with cDNA microarray revealed that RECK additionally upregulates growth hormone-releasing hormone receptor (GHRHR) and latrophilin 2 at the transcriptional level. Our findings collectively suggest that RECK regulates the cell signalling pathway, playing a critical neuroendocrinological role in the pituitary adenoma cell line.
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Affiliation(s)
- Daizo Yoshida
- Department of Neurosurgery, Nippon Medical School, 1-1-5, Sendagi, Bunkyo-ku, Tokyo, 113-8603, Japan.
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Abstract
Acromegaly is a rare and chronic condition that is characterized by sustained unregulated hypersecretion of growth hormone (GH). More than 99% of the cases of acromegaly are due to a pathologic proliferation of pituitary somatotrophs presenting in the form of a pituitary adenoma. The excessive amounts of GH and its target hormone, insulin like growth factor-1 (IGF-1) cause metabolic changes and tissue enlargement that, collectively, lead to significant morbidity and a two to threefold increase in mortality. Thus, early diagnosis has proved to be crucial to improve survival and quality of life in this condition. The development of radioimmunoassay (RIA) in the 1960s provided clinicians with a biochemical tool to diagnose acromegaly. Many limitations were inherent to this methodology which necessitated the development of more sensitive tools, such as immunoradiometric (IRMA) or immunoluminometric (ILMA) assays for GH and IGF-1 measurements. These newer assays have not come without imperfections. The reference ranges to describe normalcy of the somatotropic axis and the biochemical criteria of "cure" of acromegaly are areas of great debate. Nevertheless, the current international consensus agrees that the diagnosis of acromegaly should be based on both clinical presentation and biochemical data.
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Affiliation(s)
- Rocio A Cordero
- Division of Metabolism, Endocrinology and Diabetes, Department of Neurosurgery, The University of Michigan and the DVA Medical Center, 3920 Taubman Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-5354, USA.
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