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Abele M, Kunstreich M, Lessel L, Seitz G, Vokuhl C, Lapa C, Schneider DT, Brecht IB, Redlich A, Kuhlen M. Bronchial carcinoid tumors in children and adolescents - A report and management considerations from the German MET studies. Lung Cancer 2023; 183:107320. [PMID: 37549472 DOI: 10.1016/j.lungcan.2023.107320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/09/2023]
Abstract
OBJECTIVES Bronchial carcinoid tumors (BC) are exceptionally rare in childhood, with an incidence of <0.2/1,000,000 per year. Typical low-grade BCs are distinguished from atypical, intermediate-grade BCs. Little is known about BCs in pediatric patients and management guidelines are missing. In this study, we explored characteristics and outcome of pediatric patients with BC prospectively registered with the Malignant Endocrine Tumor studies. MATERIAL AND METHODS We performed a retrospective multicenter study in children, adolescents, and young adults (aged 0-20 years) with BC reported to the German MET registry between January 1997 and December 2022. Data were last updated on 28 of February 2023. RESULTS Thirty-two patients were diagnosed at a median age of 15.0 years (range, 9.8-19.2). Atypical BCs (23.3%) were less frequent than typical, but more common than in adulthood. Lymph node metastases were present in 14.3% of cases (atypical BC: 28.6%, typical BC: 10.5%), distant metastases in one (3.1%) patient with atypical BC. 92.6% of patients were in complete remission after surgical resection (median follow-up: 2.7 years). The patient with metastatic spread and one patient with atypical BC and multiple recurrences were on treatment at last follow-up. 5-year event-free survival of typical BC was 100% and 83.3% in atypical BC. CONCLUSIONS Completely resected localized BCs in pediatric patients have a favorable outcome also with lung tissue sparing surgery. Atypical BC with risk of metastatic spread and recurrence occurred more frequently compared to adults. Interdisciplinary management and collaborative efforts are needed to improve our understanding and the management of pediatric BC.
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Affiliation(s)
- Michael Abele
- Pediatric Hematology/Oncology, Department of Pediatrics, University Hospital Tuebingen, Tuebingen, Germany.
| | - Marina Kunstreich
- Department of Pediatrics, Pediatric Hematology/Oncology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany; Pediatrics and Adolescent Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Lienhard Lessel
- Department of Pediatrics, Pediatric Hematology/Oncology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Guido Seitz
- Department of Pediatric Surgery and Urology, University Hospital Giessen-Marburg, Marburg, Germany
| | - Christian Vokuhl
- Section of Pediatric Pathology, Department of Pathology, University Hospital Bonn, Bonn, Germany
| | - Constantin Lapa
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Dominik T Schneider
- Clinic of Pediatrics, Klinikum Dortmund, University Witten/Herdecke, Dortmund, Germany
| | - Ines B Brecht
- Pediatric Hematology/Oncology, Department of Pediatrics, University Hospital Tuebingen, Tuebingen, Germany
| | - Antje Redlich
- Department of Pediatrics, Pediatric Hematology/Oncology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Michaela Kuhlen
- Pediatrics and Adolescent Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany.
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Park H, Subramaniam RM. Diagnosis and Treatment of Lung Neuroendocrine Neoplasms: Somatostatin Receptor PET Imaging and Peptide Receptor Radionuclide Therapy. PET Clin 2023; 18:223-31. [PMID: 36585338 DOI: 10.1016/j.cpet.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Recently, advancement of somatostatin receptor (SSTR) imaging and theragnostic approach using peptide receptor radionuclide therapy (PRRT) have changed the paradigm of diagnosis and management of neuroendocrine tumor. 68Ga-DOTATATE PET/CT can diagnose the lung carcinoids with high SSTR expression. With combination of 68Ga-DOTATATE PET/CT and 18F-FDG PET/CT, tumor heterogeneity of lung carcinoid can be identified, which may guide optimal patient selection for PRRT. PRRT may be an effective and safe treatment of advanced lung carcinoids during progression with first-line somatostatin analog therapy. This review provides updates on the diagnosis and management of lung carcinoids, focusing on SSTR imaging and PRRT.
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Efstathiadou ZA, Divaris E, Michou A, Kyriakopoulos G, Kita MD. Complete and sustained remission of hypercortisolism with pasireotide treatment of an adrenocorticotropic hormone (ACTH)-secreting thoracic neuroendocrine tumor: an n-of-1 trial. Endocr J 2023; 70:229-232. [PMID: 36697023 DOI: 10.1507/endocrj.ej22-0560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
N-of-1 trials can serve as useful tools in managing rare disease. We describe a patient presenting with a typical clinical picture of Cushing's Syndrome (CS). Further testing was diagnostic of ectopic Adrenocorticotropic Hormone (ACTH) secretion, but its origin remained occult. The patient was offered treatment with daily pasireotide at very low doses (300 mg bid), which resulted in clinical and biochemical control for a period of 5 years, when a pulmonary typical carcinoid was diagnosed and dissected. During the pharmacological treatment period, pasireotide was tentatively discontinued twice, with immediate flare of symptoms and biochemical markers, followed by remission after drug reinitiation. This is the first report of clinical and biochemical remission of an ectopic CS (ECS) with pasireotide used as first line treatment, in a low-grade lung carcinoid, for a prolonged period of 5 years. In conclusion, the burden of high morbidity caused by hypercortisolism can be effectively mitigated with appropriate pharmacological treatment, in patients with occult tumors. Pasireotide may lead to complete and sustained remission of hypercortisolism, until surgical therapy is feasible. The expression of SSTR2 from typical carcinoids may be critical in allowing the use of very low drug doses for achieving disease control, while minimizing the risk of adverse events.
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Affiliation(s)
- Zoe A Efstathiadou
- Department of Endocrinology, "Hippokration" General Hospital of Thessaloniki, Thessaloniki 54642, Greece
| | - Efstathios Divaris
- Department of Endocrinology, "Hippokration" General Hospital of Thessaloniki, Thessaloniki 54642, Greece
| | - Athanasia Michou
- Department of Endocrinology, "Hippokration" General Hospital of Thessaloniki, Thessaloniki 54642, Greece
| | - Georgios Kyriakopoulos
- Department of Pathology, "Evaggelismos" General Hospital of Athens, Athens 10676, Greece
| | - Marina D Kita
- Department of Endocrinology, "Hippokration" General Hospital of Thessaloniki, Thessaloniki 54642, Greece
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Ramirez RA, Cass AS, Das S, Low SW, Mehrad M, Rickman OB, Scherer PM, Thomas KE, Gillaspie EA. A multidisciplinary approach to the work up and management of pulmonary carcinoid tumors and DIPNECH: a narrative review. Transl Lung Cancer Res 2022; 11:2567-2587. [PMID: 36636417 PMCID: PMC9830261 DOI: 10.21037/tlcr-22-415] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/06/2022] [Indexed: 12/12/2022]
Abstract
Background and Objective Low and intermediate grade neuroendocrine tumors of the lung are uncommon malignancies representing 2% of all lung cancers. These are termed typical and atypical pulmonary carcinoid tumors. These can arise in the setting of diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH). The presentation, workup, management and outcomes of patients with these tumors can overlap with more common lung cancers but differ in that many of these patients have a prolonged clinical course. The objective of this narrative review is to summarize the literature and provide evidence and expert-based algorithms for work up and treatment of pulmonary carcinoids and DIPNECH. Methods A search of PubMed and Web of Science databases ending April 15, 2022, with the following keywords "lung carcinoid", "DIPNECH", "lung neuroendocrine," and "bronchopulmonary carcinoid". Key Content and Findings Pulmonary carcinoid tumors benefit from a multidisciplinary approach. Pre-treatment imaging with contrast-enhanced computed tomography, and DOTATATE positron emission tomography is required. Surgical resection is the gold standard for curative intent, and possibly including sublobar resections. Patients can recur or develop new primaries thus emphasizing the importance of surveillance; national guidelines recommend at least a 10-year follow up. A growing body of literature support the use of endobronchial therapy, with long responses documented. Systemic therapy consists of everolimus, somatostatin analogs, peptide receptor radionuclide therapy, and chemotherapy. Diffuse idiopathic pulmonary neuroendocrine tumor cell hyperplasia is rare, but series suggest somatostatin analogs may confer clinical benefit. Conclusions Pulmonary carcinoid tumors and DIPNECH are rare. Despite lack of regulatory approvals for advanced disease, multiple options are available but should be sequenced according to the clinical status and disease biology. Each patient should be discussed in a multidisciplinary setting and clinical trials should be considered if available.
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Affiliation(s)
- Robert A. Ramirez
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Amanda S. Cass
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Satya Das
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - See-Wei Low
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mitra Mehrad
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Otis B. Rickman
- Division of Allergy, Pulmonary and Critical Care Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Philip M. Scherer
- Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Katharine E. Thomas
- Division of Hematology and Oncology, Department of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Erin A. Gillaspie
- Department of Thoracic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA
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Soldath P, Binderup T, Kjær A, Federspiel B, Langer SW, Knigge U, Petersen RH. Long-term survival and recurrence after resection of bronchopulmonary carcinoids: A single-center cohort study of 236 patients. Lung Cancer 2021; 156:109-116. [PMID: 33940543 DOI: 10.1016/j.lungcan.2021.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/30/2021] [Accepted: 04/09/2021] [Indexed: 02/01/2023]
Abstract
OBJECTIVE The aim of this study was to determine overall survival and recurrence-free survival after resection of bronchopulmonary carcinoids by means of predominantly minimally invasive surgery and lung-sparing resections. In addition, we aimed to identify prognostic factors for overall survival. MATERIALS AND METHODS Retrospective review of consecutive patients operated for bronchopulmonary carcinoids between January 2009 and October 2020 identified from a prospectively collected database. RESULTS A total of 236 patients representing 240 cases of bronchopulmonary carcinoids were included. Of these, 212 (88.3 %) were typical carcinoids, while 28 (11.7 %) were atypical carcinoids. A Video-Assisted Thoracoscopic Surgery (VATS) approach was used in 75 % of cases. There was no 30-day mortality. The median follow-up was 5.6 years for overall survival and 4.7 years for recurrence-free survival. 5- and 10-year overall survival rates were 89 % and 71 %, while 5- and 10-year recurrence-free survival rates were 84 % and 71 %. Patients with atypical carcinoids had significantly reduced overall survival and recurrence-free survival rates (HR 3.4; 95 % CI 1.5-7.6; p = 0.003 and HR 5.4; 95 % CI 2.6-11.4; p < 0.001). Independent predictors of overall survival included atypical carcinoid (HR 2.7; 95 % CI 1.2-6.0; p = 0.018) and age > 60 years (HR 2.9; 95 % CI 1.2-7.3; p = 0.021). CONCLUSION Surgery for bronchopulmonary carcinoids by means of predominantly VATS and lung-sparing resections provides favorable long-term survival. Atypical carcinoids and age > 60 years are independent predictors of poor overall survival.
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Affiliation(s)
- Patrick Soldath
- Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Tina Binderup
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark.
| | - Andreas Kjær
- Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark.
| | - Birgitte Federspiel
- Department of Pathology, Rigshospitalet, Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark.
| | - Seppo W Langer
- Department of Oncology, Rigshospitalet, Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
| | - Ulrich Knigge
- Department of Gastrointestinal Surgery, Rigshospitalet, Copenhagen, Denmark; Department of Endocrinology, Rigshospitalet, Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark.
| | - René Horsleben Petersen
- Department of Cardiothoracic Surgery, Rigshospitalet, Copenhagen, Denmark; ENETS Neuroendocrine Tumor Centre of Excellence Rigshospitalet, University of Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark.
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Uchida T, Matsubara H, Sugimura A, Matsuoka H, Ichihara T, Nakajima H. Spontaneous regression of a carcinoid tumor that required resection owing to its reappearance and subsequent enlargement after 2 years: a case report. Int Cancer Conf J 2019; 8:58-60. [PMID: 31149548 DOI: 10.1007/s13691-018-00353-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 11/28/2018] [Indexed: 10/27/2022] Open
Abstract
We present a rare case of spontaneous regression in a typical lung carcinoid. A 20-year-old woman with an abnormal shadow on a chest radiograph was admitted to our hospital. Computed tomography revealed a smooth nodule in the left S1 + 2 segment. At the 6-month follow-up, the nodule had regressed without treatment. At the 2-year follow-up, the tumor reappeared in the same place as before. We performed left upper lobectomy via 4-port thoracoscopic surgery. A pathological examination revealed a typical carcinoid. Lung carcinoids can spontaneously regress; long-term follow-up is important for timely detection of tumor reappearance.
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Affiliation(s)
- Tsuyoshi Uchida
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
| | - Hirochika Matsubara
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
| | - Aya Sugimura
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
| | - Hiroyasu Matsuoka
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
| | - Tomofumi Ichihara
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
| | - Hiroyuki Nakajima
- Department of General Thoracic Surgery, Yamanashi University, 1110 Shimokato Tyuo-shi, Yamanashi, 409-3898 Japan
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Abstract
Carcinoids of the lung and thymus are rare thoracic cancers. In general, lung carcinoid tumors have a favorable prognosis, particularly when diagnosed at an early stage and treated with surgical resection. Thymic neuroendocrine tumors may be associated with multiple endocrine neoplasia-1 syndrome, tend to have a more aggressive natural history, and relatively frequently secrete ectopic adrenocorticotropic hormone.
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Affiliation(s)
- Christine L Hann
- Upper Aerodigestive Cancer Program, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA.
| | - Patrick M Forde
- Upper Aerodigestive Cancer Program, Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
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Lamarca A, Pritchard DM, Westwood T, Papaxoinis G, Nonaka D, Vinjamuri S, Valle JW, Manoharan P, Mansoor W. 68Gallium DOTANOC-PET Imaging in Lung Carcinoids: Impact on Patients' Management. Neuroendocrinology 2018; 106:128-138. [PMID: 28399530 DOI: 10.1159/000472717] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/27/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND 68Gallium DOTA-PET imaging is preferable to standard somatostatin receptor scintigraphy where available; however, its role in the management of lung carcinoid tumours (LC) remains unclear. METHODS All consecutive patients with histologically confirmed LC from two ENETS Centres of Excellence were identified retrospectively. The primary objective was to assess the impact of 68Ga-DOTANOC-PET on clinical management in patients with LC. RESULTS Of 166 patients screened, 46 were eligible: 52% female, median age 57 years (range 21-86); type of LC: diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (4%), typical (44%), atypical (35%), not reported (17%); stage: localised (63%), locally advanced (13%), and metastatic (17%) (7% unknown). A total of 47 68Ga-DOTANOCs were performed with the following rationale: LC diagnosis confirmation (4; 9%), primary tumour identification (2; 4%), post-surgical assessment (19; 40%), staging (patients with known LC present at time of 68Ga-DOTANOC) (19; 40%), and consideration of peptide receptor radionuclide therapy (3; 7%). Twenty-seven (57%) scans showed evidence of non-physiological uptake: median maximum standardised uptake value 7.2 (range 1.42-53). 68Ga-DOTANOC provided additional information in 37% (95% CI 22-51) of patients and impacted on management in 26% (95% CI 12-41); 9 patients (21%) were identified to have occult sites of metastases. Out of the 19 patients with post-surgical 68Ga-DOTANOC, 3 (16%) were identified to have distant metastases. There were no differences in the rate of practice changing 68Ga-DOTANOC results by type of LC (p value 0.5). CONCLUSIONS Our results support the role of 68Ga-DOTANOC for optimising the management of patients with LC, including post-surgical re-staging due to the potential for identifying occult metastases.
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Daskalakis K, Kaltsas G, Öberg K, Tsolakis AV. Lung Carcinoids: Long-Term Surgical Results and the Lack of Prognostic Value of Somatostatin Receptors and Other Novel Immunohistochemical Markers. Neuroendocrinology 2018; 107:355-365. [PMID: 30244255 DOI: 10.1159/000493944] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 09/16/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Lung carcinoids (LCs) are often diagnosed at an early stage and surgical intervention becomes the next phase of treatment. To date, there is lack of long-term follow-up data after surgery and prognostication based on WHO classification criteria and evolving prognostic markers, particularly the expression of somatostatin receptors (SSR). METHODS We included 102 consecutive patients (72 women; age at baseline 51 ± 16 years [mean ± SD]) with LCs, who underwent thoracic surgery (n = 99) and/or laser treatment (n = 8). Hospital charts were reviewed for clinico-pathological parameters. Immunohistochemical (IHC) expression of SSR1-5 and other novel markers were studied with regard to their prognostic value. RESULTS Five- and 10-year overall survival (OS) was 96 and 83% respectively; relative survival (RS) was 101 and 93% respectively; and event-free survival (EFS) was 80 and 67% respectively. Independent prognostic factors for OS, RS and/or EFS were age at diagnosis, histopathological type and the presence of ipsilateral mediastinal subcarinal lymph node metastases. Macro-radicality of resective surgery and its extent were associated with increased OS and EFS. The IHC expression of SSR1-5 and other novel markers was not associated with OS or EFS. CONCLUSION The long-term outcome of surgically treated patients with LCs is favourable. Age, histopathological type and ipsilateral mediastinal subcarinal lymph node status at baseline were independent prognostic factors for survival and disease recurrence or progression. The extent of surgery and operative macro-radicality also had an impact on prognosis. None of the IHC markers tested appeared to be associated with disease prognosis.
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Affiliation(s)
| | - Gregory Kaltsas
- First Department of Propaupedic Internal Medicine, Endocrine Oncology Unit, Laiko Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Kjell Öberg
- Department of Medical Sciences, Section of Endocrine Oncology, Uppsala University, Uppsala, Sweden
| | - Apostolos V Tsolakis
- Department of Medical Sciences, Section of Endocrine Oncology, Uppsala University, Uppsala, Sweden
- Department of Oncology and Pathology, Karolinska Institute, Stockholm, Sweden
- Cancer Centre Karolinska, CCK, Karolinska University Hospital, Stockholm, Sweden
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Abstract
Neuroendocrine tumors (NETs) of the lung are divided into 4 major types: small cell lung cancer (SCLC), large cell neuroendocrine carcinoma (LCNEC), atypical carcinoid (AC) or typical carcinoid (TC). Each classification has distinctly different treatment paradigms, making an accurate initial diagnosis essential. The inconsistent clinical presentation of this disease, however, makes this difficult. The objective of this manuscript is to detail the diagnosis and management of the well differentiated pulmonary carcinoid (PC) tumors. A multidisciplinary approach to work up and treatment should be utilized for each patient. A multimodal radiological work-up is used for diagnosis, with contrast enhanced CT predominantly utilized and functional imaging techniques. A definitive diagnosis is based on tissue findings. Surgical management remains the mainstay of therapy and can be curative. In those with advanced disease, medical treatments consist of somatostatin analog (SSA) therapy, targeted therapy, chemotherapy or peptide receptor radionuclide therapy. SSAs are the standard of care in those with metastatic NETs, using either Octreotide long acting repeatable (LAR) or lanreotide as reasonable options, despite a scarcity of prospective data in PCs. Targeted therapies consist of everolimus which is approved for use in PCs, with various studies showing mixed results with other targeted agents. Additionally, radionuclide therapy may be used and has been shown to increase survival and to reduce symptoms in some studies. Prospective trials are needed to determine other strategies that may be beneficial in PCs as well as sequencing of therapy. Successful diagnosis and optimal treatment relies on a multidisciplinary approach in patients with lung NETs. Clinical trials should be used in appropriate patients.
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Affiliation(s)
- Robert A Ramirez
- Ochsner Medical Center - Kenner, 200 West Esplanade Ave, Suite 200, Kenner, LA, 70065, USA.
| | - Aman Chauhan
- University of Kentucky Medical Center, Lexington, KY, 40536, USA
| | - Juan Gimenez
- Ochsner Medical Center - Kenner, 200 West Esplanade Ave, Suite 200, Kenner, LA, 70065, USA
| | - Katharine E H Thomas
- Ochsner Medical Center - Kenner, 200 West Esplanade Ave, Suite 200, Kenner, LA, 70065, USA
| | - Ioni Kokodis
- Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA, 70121, USA
| | - Brianne A Voros
- Louisiana State University Health Sciences Center, New Orleans, LA, 70112, USA
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Abstract
Carcinoid tumors are rich in somatostatin receptors and show high uptake of radiotracer on octreotide scintigraphy. 68Ga-DOTATATE could be of great help at initial staging and during follow-up of these patients. We describe a patient with avid 68Ga-DOTATATE and poor F18-FDG uptake.
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Affiliation(s)
- Amit Bhoil
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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