1
|
Usmani S, Al Riyami K, Jain A, Selvakumar RJ, Jayakrishan VV. The Great Imitator: Pulmonary Paraganglioma Mimicking Pulmonary Metastasis of Breast Cancer on 18 F-FDG PET/CT. Clin Nucl Med 2024; 49:e82-e84. [PMID: 38170907 DOI: 10.1097/rlu.0000000000005029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
ABSTRACT Primary pulmonary paragangliomas are rare neuroendocrine tumors and are often discovered incidentally as nonfunctioning masses. We report a case of 58-year-old woman recently diagnosed with multifocal right breast cancer and suspicious right axillary lymph nodes. 18 F-FDG PET/CT showed a well-defined marginated lesion in the lower lobe of the right lung with intense FDG uptake. Findings were suspicious for pulmonary metastases. CT-guided biopsy results were consistent with a paraganglioma. Paragangliomas can mimic metastases, especially if they are large or have a high degree of FDG uptake, and careful evaluation of imaging features and clinical findings can help differentiate these entities. Most of the time biopsy is necessary to confirm the diagnosis.
Collapse
Affiliation(s)
| | | | - Anjali Jain
- From the Departments of Radiology and Nuclear Medicine
| | | | | |
Collapse
|
2
|
Tassi V, Scarnecchia E, Ferolla P, Mete O, Manjula M, Allison F, Potenza R, Vannucci J, Ceccarelli S, Yasufuku K, De Perrot M, Pierre A, Darling G, Colella R, Ascani S, Mattioli S, Keshavjee S, Waddell TK, Puma F, Daddi N. Prognostic Significance of Pulmonary Multifocal Neuroendocrine Proliferation With Typical Carcinoid. Ann Thorac Surg 2022; 113:966-974. [PMID: 33831394 DOI: 10.1016/j.athoracsur.2021.03.069] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND The clinical significance of multifocal pulmonary neuroendocrine proliferation (MNEP), including tumorlets and pulmonary neuroendocrine cell hyperplasia, in association with typical carcinoid (TC), is still debated. METHODS We evaluated a retrospective series of TC with long-term follow-up data prospectively collected from 2 institutions and compared the outcome between TC alone and MNEP plus TC. Several baseline covariates were imbalanced between the MNEP plus TC and TC groups; therefore, we conducted 1:1 propensity score matching and inverse probability of treatment weighting in the full sample. In the matched group, the association of clinical, respiratory, and work-related factors with the group was determined through univariable and multivariable conditional logistic regression analysis. RESULTS A total of 234 TC patients underwent surgery: 41 MNEP plus TC (17.5%) and 193 TC alone (82.5%). In the MNEP plus TC group, older age (P < .001), peripheral tumors (P = .0032), smaller tumor size (P = .011), and lymph node spread (P = .02) were observed compared with the TC group. Relapses occurred in 8 patients in the MNEP plus TC group (19.5%) and 7 in the TC group (3.6%). After matching, in 36 pairs of patients, a significantly higher 5-year progression-free rate was observed for the TC group (P < .01). Similar results were observed using inverse probability of treatment weighting in the full sample. The odds of being in the MNEP plus TC group was higher for those with work-related exposure to inhalant agents (P = .008), asthma or bronchitis (P = .002), emphysema, fibrosis, and inflammatory status (P = .032), or micronodules on the chest computed tomography scan and respiratory insufficiency (P = .036). CONCLUSIONS The association with MNEP seems to represent a clinically and prognostic relevant factor in TC. Hence, careful preoperative workup, systematic pathologic evaluation, including nontumorous lung parenchyma, and long-term postoperative follow-up should be recommended in these patients.
Collapse
Affiliation(s)
- Valentina Tassi
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Elisa Scarnecchia
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Piero Ferolla
- Multidisciplinary NET Group, Umbria Regional Cancer Network and University of Perugia, Perugia, Italy
| | - Ozgur Mete
- Department of Pathology, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Canada
| | - Maganti Manjula
- Department of Biostatistics, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Canada
| | - Frances Allison
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Rossella Potenza
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy
| | - Jacopo Vannucci
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Silvia Ceccarelli
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Kazuhiro Yasufuku
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Marc De Perrot
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Andrew Pierre
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Gail Darling
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Renato Colella
- Pathology Unit, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Stefano Ascani
- Pathology Unit, Department of Medicine, Medical Clinic Section and Anatomical Pathology, Terni, Italy
| | - Sandro Mattioli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Shaf Keshavjee
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Thomas Kenneth Waddell
- Division of Thoracic Surgery, University Health Network, University of Toronto, Toronto, Canada
| | - Francesco Puma
- Thoracic Surgery Unit, Department of Surgical and Biomedical Sciences, University of Perugia, Perugia, Italy
| | - Niccolò Daddi
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Bologna, Italy; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy.
| |
Collapse
|
3
|
Metovic J, Barella M, Harari S, Pattini L, Albini A, Sonzogni A, Veronesi G, Papotti M, Pelosi G. Clinical implications of lung neuroendocrine neoplasm classification. Expert Rev Anticancer Ther 2020; 21:377-387. [PMID: 33306420 DOI: 10.1080/14737140.2021.1862654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Neuroendocrine neoplasms of the lung (Lung NENs) encompass NE tumors (NETs), which are in turn split into typical and atypical carcinoids, and NE carcinomas (NECs), which group together small-cell carcinoma and large-cell NE carcinoma. This classification is the current basis for orienting the daily practice of these patients, with diagnostic, prognostic, and predictive inferences. AREAS COVERED The clinical implications of lung NEN classification are addressed according to three converging perspectives, which were dissected through an extensive literature overview: (1) how to put intratumor heterogeneity into the context of the current classification; (2) how to contextualize immunohistochemistry markers to improve diagnosis, prognosis, and therapy prediction; and (3) how to use immuno-oncology strategies for life-threatening NECs, which still account for 90% or more of lung NENs. EXPERT OPINION We provide practical insights to account for intratumor heterogeneity, practice the choice of immunohistochemistry markers, and emphasize once again the added value of immuno-oncology in the setting of personalized medicine of lung NENs.
Collapse
Affiliation(s)
- Jasna Metovic
- Department of Oncology, University of Turin, Turin, Italy
| | - Marco Barella
- Inter-Hospital Pathology Division, IRCCS MultiMedica, Milan, Italy
| | - Sergio Harari
- Department of Medical Sciences and Community Health, University of Milan, Milan, Italy.,Division of Pneumology, San Giuseppe Hospital, IRCCS MultiMedica, Milan, Italy
| | - Linda Pattini
- Department of Electronics, Information and Bioengineering, Politecnico Di Milano, Milan, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, Milan, Italy
| | - Angelica Sonzogni
- Department of Pathology and Laboratory Medicine, IRCCS Istituto Nazionale Dei Tumori, Milan, Italy
| | - Giulia Veronesi
- Division of Thoracic Surgery, San Raffaele Scientific Institute - IRCCS, Milan, Italy.,School of Medicine, Vita-Salute San Raffaele University, Milan, Italy
| | - Mauro Papotti
- Department of Oncology, University of Turin, Turin, Italy
| | - Giuseppe Pelosi
- Inter-Hospital Pathology Division, IRCCS MultiMedica, Milan, Italy.,Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| |
Collapse
|
4
|
Baine MK, Rekhtman N. Multiple faces of pulmonary large cell neuroendocrine carcinoma: update with a focus on practical approach to diagnosis. Transl Lung Cancer Res 2020; 9:860-878. [PMID: 32676352 PMCID: PMC7354156 DOI: 10.21037/tlcr.2020.02.13] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Pulmonary large cell neuroendocrine carcinoma (LCNEC) is a rare and aggressive malignancy that is strongly linked to smoking and notoriously difficult to diagnose and treat. Recent molecular data reveal that it represents a biologically heterogeneous group of tumors, characterized by morphologic and genomic diversity that straddles small cell and non-small cell lung carcinomas (NSCLCs), and in a minority of cases atypical carcinoids. This review provides an update on recent molecular and clinical developments in LCNEC with the main focus on practical approach to pathologic diagnosis using illustrative examples of the main differential diagnostic considerations.
Collapse
Affiliation(s)
- Marina K Baine
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Natasha Rekhtman
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| |
Collapse
|
5
|
Automated quantification of Ki-67 index associates with pathologic grade of pulmonary neuroendocrine tumors. Chin Med J (Engl) 2019; 132:551-561. [PMID: 30807354 PMCID: PMC6416093 DOI: 10.1097/cm9.0000000000000109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background: Classification of the pulmonary neuroendocrine tumor (pNET) categories is a step-wise process identified by the presence of necrosis and number of mitoses per 2 mm2. In neuroendocrine tumor pathology, Ki-67 was first described as a prognostic factor in the pancreas and incorporated into the grading system of digestive tract neuroendocrine neoplasms in the 2010 WHO classification. However, the significance of Ki-67 in pNETs was still a controversial issue. This study was to investigate the potentially diagnostic value of Ki-67 in pNETs. Methods: We retrieved 159 surgical specimens of pNETs, including 35 typical carcinoids (TCs), 2 atypical carcinoid (ACs), 28 large-cell neuroendocrine carcinomas (LCNECs), 94 small-cell lung cancers (SCLCs). Manual conventional method (MCM) and computer-assisted image analysis method (CIAM) were used to calculate the Ki-67 proliferative index. In CIAM, 6 equivalent fields (500 × 500 μm) at 10× magnification were manually annotated for digital image analysis. Results: The Ki-67 index among the 4 groups with ranges of 0.38% to 12.66% for TC, 4.34% to 29.48% for AC, 30.67% to 93.74% for LCNEC, and 40.71% to 96.87% for SCLC. The cutoff value of Ki-67 index to distinguish low grade with high grade was 30.07%. For the univariate survival analyses in pNETs, both the overall survival and progression-free survival correlated with Ki-67 index. In addition, the Ki-67 index performed by CIAM was proved to be of great positive correlation with MCM. Conclusions: Ki-67 index counted by CIAM is a reliable method and can be a useful adjunct to classify the low- and high-grade NETs.
Collapse
|
6
|
Kashima J, Kitadai R, Okuma Y. Molecular and Morphological Profiling of Lung Cancer: A Foundation for "Next-Generation" Pathologists and Oncologists. Cancers (Basel) 2019; 11:E599. [PMID: 31035693 PMCID: PMC6562944 DOI: 10.3390/cancers11050599] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 04/18/2019] [Accepted: 04/24/2019] [Indexed: 12/12/2022] Open
Abstract
The pathological diagnosis of lung cancer has largely been based on the morphological features observed microscopically. Recent innovations in molecular and genetic technology enable us to compare conventional histological classifications, protein expression status, and gene abnormalities. The introduction of The Cancer Genome Atlas (TCGA) project along with the widespread use of the next-generation sequencer (NGS) have facilitated access to enormous data regarding the molecular profiles of lung cancer. The World Health Organization classification of lung cancer, which was revised in 2015, is based on this progress in molecular pathology; moreover, immunohistochemistry has come to play a larger role in diagnosis. In this article, we focused on genetic and epigenetic abnormalities in non-small cell carcinoma (adenocarcinoma and squamous cell carcinoma), neuroendocrine tumor (including carcinoids, small cell carcinoma, and large cell neuroendocrine carcinoma), and carcinoma with rare histological subtypes. In addition, we summarize the therapeutic targeted reagents that are currently available and undergoing clinical trials. A good understanding of the morphological and molecular profiles will be necessary in routine practice when the NGS platform is widely used.
Collapse
Affiliation(s)
- Jumpei Kashima
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious diseases Center Komagome Hospital, Tokyo 113-8677, Japan.
- Department of Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.
| | - Rui Kitadai
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 113-8677, Japan.
| | - Yusuke Okuma
- Department of Thoracic Oncology and Respiratory Medicine, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo 113-8677, Japan.
- Department of Thoracic Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan.
| |
Collapse
|
7
|
Pelosi G, Bianchi F, Hofman P, Pattini L, Ströbel P, Calabrese F, Naheed S, Holden C, Cave J, Bohnenberger H, Dinter H, Harari S, Albini A, Sonzogni A, Papotti M, Volante M, Ottensmeier CH. Recent advances in the molecular landscape of lung neuroendocrine tumors. Expert Rev Mol Diagn 2019; 19:281-297. [PMID: 30900485 DOI: 10.1080/14737159.2019.1595593] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 03/12/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Neuroendocrine tumors of the lung (Lung-NETs) make up a heterogenous family of neoplasms showing neuroendocrine differentiation and encompass carcinoids and neuroendocrine carcinomas. On molecular grounds, they considered two completely distinct and separate tumor groups with no overlap of molecular alterations nor common developmental mechanisms. Areas covered: Two perspectives were evaluated based on an extensive review and rethinking of literature: (1) the current classification as an instrument to obtaining clinical and molecular insights into the context of Lung-NETs; and (2) an alternative and innovative interpretation of these tumors, proposing a tripartite separation into early aggressive primary high-grade neuroendocrine tumors (HGNET), differentiating or secondary HGNET, and indolent NET. Expert opinion: We herein provide an alternative outlook on Lung-NETs, which is a paradigm shift to current pathogenesis models and expands the understanding of these tumors.
Collapse
Affiliation(s)
- Giuseppe Pelosi
- a Department of Oncology and Hemato-Oncology , University or Milan , Milan , Italy
- b Inter-hospital Pathology Division , Institute for Research and Care-IRCCS MultiMedica , Milan , Italy
| | - Fabrizio Bianchi
- c Cancer Biomarkers Unit, Foundation for Research and Care-IRCCS "Casa Sollievo della Sofferenza" , Foggia , Italy
| | - Paul Hofman
- d Laboratory of Clinical and Experimental Pathology , FHU OncoAge, Nice Hospital, Biobank BB-0033-00025, IRCAN, Inserm U1081 CNRS 7284, University Côte d'Azur , Nice , France
| | - Linda Pattini
- e Department of Electronics , Information and Bioengineering, Polytechnic of Milan , Milan , Italy
| | - Philipp Ströbel
- f Institute of Pathology , University Medical Center Göttingen , Göttingen , Germany
| | - Fiorella Calabrese
- g Department of Cardiac, Thoracic and Vascular Sciences , University of Padua , Padua , Italy
| | - Salma Naheed
- h Cancer Sciences Unit, Faculty of Medicine , University of Southampton , Southampton , UK
| | - Chloe Holden
- i Department of Medical Oncology , Royal Bournemouth and Christchurch Hospitals NHS Trust , Bournemouth , UK
| | - Judith Cave
- j Department of Medical Oncology , University Hospital Southampton NHS FT , Southampton , UK
| | - Hanibal Bohnenberger
- f Institute of Pathology , University Medical Center Göttingen , Göttingen , Germany
| | - Helen Dinter
- f Institute of Pathology , University Medical Center Göttingen , Göttingen , Germany
| | - Sergio Harari
- k Department of Medical Sciences and Division of Pneumology, San Giuseppe Hospital , Institute for Research and Care-IRCCS MultiMedica , Milan , Italy
| | - Adriana Albini
- l Laboratory of Vascular Biology and Angiogenesis , Institute for Research and Care-IRCCS MultiMedica , Milan , Italy
| | - Angelica Sonzogni
- m Department of Pathology and Laboratory Medicine , Foundation for Research and Care-IRCCS National Cancer Institute , Milan , Italy
| | - Mauro Papotti
- n Department of Oncology , University of Turin , Turin , Italy
| | - Marco Volante
- o Department of Oncology , University of Turin and Pathology Unit San Luigi Hospital , Turin , Italy
| | - Christian H Ottensmeier
- p Christian CRUK and NIHR Southamtpon Experimental Cancer Medicine Centre, Faculty of Medicine , University of Southampton , Southampton , UK
| |
Collapse
|
8
|
Shimizu K, Goto Y, Kawabata-Iwakawa R, Ohtaki Y, Nakazawa S, Yokobori T, Obayashi K, Kawatani N, Yajima T, Kaira K, Mogi A, Hirato J, Nishiyama M, Shirabe K. Stathmin-1 Is a Useful Diagnostic Marker for High-Grade Lung Neuroendocrine Tumors. Ann Thorac Surg 2019; 108:235-243. [PMID: 30910656 DOI: 10.1016/j.athoracsur.2019.02.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/29/2018] [Accepted: 02/19/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Stathmin-1 regulates microtubule dynamics and is associated with malignant phenotypes in non-small cell lung cancer (NSCLC). This study evaluated its diagnostic value for differentiating between NSCLC and high-grade lung neuroendocrine tumor (HGNET). METHODS Stathmin-1 protein expression was assessed by immunohistochemistry in 414 NSCLC (305 adenocarcinoma [AD], 102 squamous cell carcinoma [SCC], 7 large-cell carcinoma), 5 typical carcinoid (low-grade lung neuroendocrine tumor), and 34 HGNET (17 small-cell carcinoma [SCLC] and 17 large-cell neuroendocrine carcinoma [LCNEC]) surgical specimens and 57 NSCLC (29 AD and 28 SCC) and 42 HGNET (17 LCNEC and 25 SCLC) biopsy specimens. We also analyzed stathmin-1 mRNA levels in 81 NSCLCs and 26 HGNETs with the use of reverse transcription-polymerase chain reaction. RESULTS Among NSCLC samples, we saw high stathmin-1 protein expression in only three ADs, one SCC, and one large-cell carcinoma surgical samples, all five of which showed neuroendocrine characteristics in pathologic re-review; and low or intermediate expression in all five typical carcinoid surgical samples and all 57 NSCLC biopsy samples. In contrast, all HGNET surgical (n = 34) and biopsy (n = 42) samples showed high stathmin-1 expression. In reverse transcription-polymerase chain reaction, stathmin-1 expression was significantly higher in HGNET tissues than in NSCLC tissues (p < 0.001). CONCLUSIONS Stathmin-1 expression can help in differentiating NSCLC from HGNET.
Collapse
Affiliation(s)
- Kimihiro Shimizu
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan.
| | - Yusuke Goto
- Department of Pathology, Gunma University Hospital, Gunma, Japan
| | - Reika Kawabata-Iwakawa
- Department of Molecular Pharmacology and Oncology, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Yoichi Ohtaki
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Seshiru Nakazawa
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Takehiko Yokobori
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan; Department of Oncology Clinical Development, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Kai Obayashi
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Natsuko Kawatani
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Toshiki Yajima
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Kyoichi Kaira
- Department of Oncology Clinical Development, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Akira Mogi
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Junko Hirato
- Department of Pathology, Gunma University Hospital, Gunma, Japan
| | - Masahiko Nishiyama
- Department of Molecular Pharmacology and Oncology, Gunma University, Graduate School of Medicine, Gunma, Japan
| | - Ken Shirabe
- Department of General Surgical Science, Gunma University, Graduate School of Medicine, Gunma, Japan
| |
Collapse
|
9
|
Ablating all three retinoblastoma family members in mouse lung leads to neuroendocrine tumor formation. Oncotarget 2018; 8:4373-4386. [PMID: 27966456 PMCID: PMC5354839 DOI: 10.18632/oncotarget.13875] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 12/05/2016] [Indexed: 02/05/2023] Open
Abstract
Lung cancer is a deadly disease with increasing cases diagnosed worldwide and still a very poor prognosis. While mutations in the retinoblastoma (RB1) tumor suppressor have been reported in lung cancer, mainly in small cell lung carcinoma, the tumor suppressive role of its relatives p107 and p130 is still a matter of debate. To begin to investigate the role of these two Rb family proteins in lung tumorigenesis, we have generated a conditional triple knockout mouse model (TKO) in which the three Rb family members can be inactivated in adult mice. We found that ablation of all three family members in the lung of mice induces tumorlets, benign neuroendocrine tumors that are remarkably similar to their human counterparts. Upon chemical carcinogenesis, DHPN and urethane accelerate tumor development; the TKO model displays increased sensitivity to DHPN, and urethane increases malignancy of tumors. All the tumors developing in TKO mice (spontaneous and chemically induced) have neuroendocrine features but do not progress to fully malignant tumors. Thus, loss of Rb and its family members confers partial tumor susceptibility in neuroendocrine lineages in the lungs of mice. Our data also imply the requirement of other oncogenic signaling pathways to achieve full transformation in neuroendocrine lung lesions mutant for the Rb family.
Collapse
|
10
|
Pelosi G, Bianchi F, Dama E, Simbolo M, Mafficini A, Sonzogni A, Pilotto S, Harari S, Papotti M, Volante M, Fontanini G, Mastracci L, Albini A, Bria E, Calabrese F, Scarpa A. Most high-grade neuroendocrine tumours of the lung are likely to secondarily develop from pre-existing carcinoids: innovative findings skipping the current pathogenesis paradigm. Virchows Arch 2018; 472:567-577. [PMID: 29388013 DOI: 10.1007/s00428-018-2307-3] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 12/30/2017] [Accepted: 01/21/2018] [Indexed: 12/16/2022]
|
11
|
Agasarova A, Harnett C, Mulligan N, Majeed MS, Caimo A, Tamagno G. Management and Follow-up of Patients with a Bronchial Neuroendocrine Tumor in the Last Twenty Years in Ireland: Expected Inconsistencies and Unexpected Discoveries. Int J Endocrinol 2018; 2018:1043287. [PMID: 30228817 PMCID: PMC6136490 DOI: 10.1155/2018/1043287] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/30/2018] [Accepted: 08/08/2018] [Indexed: 11/18/2022] Open
Abstract
Bronchial neuroendocrine tumors (NET) are classified into well-differentiated typical carcinoids (TC), atypical carcinoids (AC), large cell neuroendocrine carcinomas (LCNEC), and small cell lung carcinomas (SCLC). We retrospectively reviewed and analyzed the diagnostic and therapeutic aspects, follow-up data, and outcomes of all patients diagnosed with a bronchial NET from 1995 to 2015 at our institution. Patients with LCNEC or SCLC were excluded due to the biological and clinical differences from the other bronchial NET. The clinical, laboratory, imaging, treatment, and follow-up data were collected and analyzed keeping in mind the recently published international recommendations. Forty-six patients were included in the study. Of these, 37 had a TC and 5 an AC. In 4 patients, the histological characterization was inadequate. Forty-four patients underwent surgery. Four patients developed metastatic disease. Interestingly, 14 patients had one or more other tumors diagnosed at some stage and 3 of them had three different tumors. A total of 7 patients died. The analysis of the laboratory and pathology assessment identified some inconsistencies when compared to the international recommendations. Although the treatment of bronchial NET at our institution was consistent with the successively published recommendations, it appears that the diagnostic process and the follow-up surveillance were not. We think that a systematic multidisciplinary approach might improve bronchial NET patient care. A relatively high rate of occurrence of a second, or also a third, non-NET tumor was observed, though the statistical value of such observation could not be exhaustively elucidated in this numerically limited patient population. In our opinion, the observed high rate of second malignancies in this patient cohort highlights the necessity of optimizing the follow-up of the bronchial NET patients, also considering the very good survival rate achieved with regard to the bronchial NET.
Collapse
Affiliation(s)
- Asta Agasarova
- Department of Endocrinology/Diabetes Mellitus, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Clare Harnett
- Department of Endocrinology/Diabetes Mellitus, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Niall Mulligan
- Department of Pathology, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Muhammad Shakeel Majeed
- Department of Endocrinology/Diabetes Mellitus, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Alberto Caimo
- School of Mathematical Sciences, Dublin Institute of Technology, Dublin, Ireland
| | - Gianluca Tamagno
- Department of Endocrinology/Diabetes Mellitus, Mater Misericordiae University Hospital, Dublin, Ireland
| |
Collapse
|
12
|
Rossi G, Bertero L, Marchiò C, Papotti M. Molecular alterations of neuroendocrine tumours of the lung. Histopathology 2017; 72:142-152. [DOI: 10.1111/his.13394] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 09/01/2017] [Accepted: 09/05/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Giulio Rossi
- Pathology Unit; Azienda USL Valle d'Aosta; Regional Hospital ‘Parini’; Aosta Italy
| | - Luca Bertero
- Department of Oncology; University of Turin and Pathology Unit; AOU Città della Salute e della Scienza; Torino Italy
| | - Caterina Marchiò
- Department of Medical Sciences; University of Turin and Pathology Unit; AOU Città della Salute e della Scienza; Torino Italy
| | - Mauro Papotti
- Department of Oncology; University of Turin and Pathology Unit; AOU Città della Salute e della Scienza; Torino Italy
| |
Collapse
|
13
|
Abstract
High-grade neuroendocrine carcinomas of the lung are classified into two categories: large cell neuroendocrine carcinoma (LCNEC) and small cell lung carcinoma (SCLC). While typical cases of LCNEC are morphologically distinct from SCLC, the differentiation between LCNEC and SCLC can be challenging in some cases. In fact, there are borderline high-grade neuroendocrine carcinomas that morphologically fall between LCNEC and SCLC. Growing evidence suggests that LCNEC is a histologically and biologically heterogeneous group of tumors. Molecular profiling with next-generation sequencing (NGS) has revealed a few biologically distinct subsets of LCNEC. Of those, the SCLC-like subset is characterized by concurrent inactivating mutations in TP53 and loss of RB1 that are typically seen in SCLC, whereas the non-small cell lung cancer (NSCLC)-like subset frequently harbors molecular alterations that are usually seen in NSCLC. Furthermore, the SCLC-like subset exhibits morphologic features of SCLC, and NSCLC-like morphology predominates in the NSCLC-like subset, although there was a substantial overlap in morphologic features between these subsets. As for the treatment of LCNEC, surgery is advocated for early stage tumors, but surgery alone does not appear to be sufficient and adjuvant chemotherapy, consisting of platinum/etoposide, likely prevents recurrence in patients with completely resected LCNEC. For advanced disease, there have been conflicting reports as to whether LCNEC responds to chemotherapeutic regimens in the similar manner to SCLC rather than NSCLC, and the heterogeneous biology of LCNEC may contribute in part to the discrepant results. A further understanding of the biology of LCNEC will lead to novel approaches to clinical managements of patients with LCNEC.
Collapse
Affiliation(s)
- Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University, Yachiyo Medical Center, Yachiyo, Japan
| | - Mari Mino-Kenudson
- Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
14
|
Pelosi G, Sonzogni A, Harari S, Albini A, Bresaola E, Marchiò C, Massa F, Righi L, Gatti G, Papanikolaou N, Vijayvergia N, Calabrese F, Papotti M. Classification of pulmonary neuroendocrine tumors: new insights. Transl Lung Cancer Res 2017; 6:513-529. [PMID: 29114468 PMCID: PMC5653522 DOI: 10.21037/tlcr.2017.09.04] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 09/12/2017] [Indexed: 12/11/2022]
Abstract
Neuroendocrine tumors of the lung (Lu-NETs) embrace a heterogeneous family of neoplasms classified into four histological variants, namely typical carcinoid (TC), atypical carcinoid (AC), large cell neuroendocrine carcinoma (LCNEC) and small cell lung carcinoma (SCLC). Defining criteria on resection specimens include mitotic count in 2 mm2 and the presence or absence of necrosis, alongside a constellation of cytological and histological traits including cell size and shape, nuclear features and overall architecture. Clinically, TC are low-grade malignant tumors, AC intermediate-grade malignant tumors and SCLC/LCNEC high-grade malignant full-blown carcinomas with no significant differences in survival between them. Homologous tumors arise in the thymus that occasionally have some difficulties in differentiating from the lung counterparts when presented with large unresectable or metastatic lesions. Immunohistochemistry (IHC) helps refine NE diagnosis at various anatomical sites, particularly on small-sized tissue material, in which only TC and small cell carcinoma categories can be recognized easily on hematoxylin & eosin stain, while AC and LCNEC can only be suggested on such material. The Ki-67 labeling index effectively separates carcinoids from small cell carcinoma and may prove useful for the clinical management of a metastatic disease to help the therapeutic decision-making process. Although carcinoids and high-grade neuroendocrine carcinomas in the lung and elsewhere make up separate tumor categories on molecular grounds, emerging data supports the concept of secondary high-grade NETs arising in the preexisting carcinoids, whose clinical and biological relevance will have to be placed into the proper context for the optimal management of these patients. In this review, we will discuss the selected, recent literature with a focus on current issues regarding Lu-NET nosology, i.e., classification, derivation and tumor evolution.
Collapse
Affiliation(s)
- Giuseppe Pelosi
- Department of Oncology and Hemato-Oncology, Università degli Studi di Milano, Milan, Italy
- Inter-hospital Pathology Division, Science & Technology Park, IRCCS MultiMedica Group, Milan, Italy
| | - Angelica Sonzogni
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Sergio Harari
- Department of Medical Sciences and Division of Pneumology, San Giuseppe Hospital, Science & Technology Park, IRCCS MultiMedica Group, Milan, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, Science & Technology Park, IRCCS MultiMedica Group, Milan, Italy
| | - Enrica Bresaola
- Department of Pathology and Laboratory Medicine, European Institute of Oncology, Milan, Italy
| | - Caterina Marchiò
- Department of Medical Sciences, University of Turin, and Pathology Division, AOU Città della Salute e della Scienza, Turin, Italy
| | - Federica Massa
- Department of Oncology, University of Turin, and Pathology Division, AOU Città della Salute e della Scienza, Turin, Italy
| | - Luisella Righi
- Department of Oncology, University of Turin, Pathology Division, San Luigi Hospital, University of Turin, Turin, Italy
| | - Gaia Gatti
- Department of Oncology, University of Turin, Pathology Division, San Luigi Hospital, University of Turin, Turin, Italy
| | - Nikolaos Papanikolaou
- Inter-hospital Pathology Division, Science & Technology Park, IRCCS MultiMedica Group, Milan, Italy
| | - Namrata Vijayvergia
- Department of Hematology and Oncology, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Fiorella Calabrese
- Department of Cardiac, Thoracic and Vascular Sciences, University of Padua, Padova, Italy
| | - Mauro Papotti
- Department of Oncology, University of Turin, and Pathology Division, AOU Città della Salute e della Scienza, Turin, Italy
| |
Collapse
|
15
|
Biology and evolution of poorly differentiated neuroendocrine tumors. Nat Med 2017; 23:1-10. [PMID: 28586335 DOI: 10.1038/nm.4341] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 04/13/2017] [Indexed: 12/11/2022]
Abstract
Neuroendocrine (NE) cancers are a diverse group of neoplasms typically diagnosed and treated on the basis of their site of origin. This Perspective focuses on advances in our understanding of the tumorigenesis and treatment of poorly differentiated neuroendocrine tumors. Recent evidence from sequencing indicates that, although neuroendocrine tumors can arise de novo, they can also develop as a result of lineage plasticity in response to pressure from targeted therapies. We discuss the shared genomic alterations of these tumors independently of their site of origin, and we explore potential therapeutic strategies on the basis of recent biological findings.
Collapse
|
16
|
High-grade Neuroendocrine Carcinoma of the Lung With Carcinoid Morphology: A Study of 12 Cases. Am J Surg Pathol 2017; 41:263-270. [PMID: 27879513 DOI: 10.1097/pas.0000000000000767] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Twelve lung neuroendocrine tumors with morphologic features of carcinoid tumors but with mitotic count >10/2 mm are reported. There were 7 males and 5 females, with age ranging from 56 to 78 years. Four cases were from never-smokers. All tumors showed architectural and cytomorphologic features of carcinoid tumor, including organoid nesting, insular, trabecular, or acinar growth, and tumor cells with low nucleocytoplasmic ratio, abundant cytoplasm, ovoid to round nuclei, and salt and pepper chromatin. Angulated or confluent nesting, insular or lobular growth pattern was also seen. Nuclear irregularities and anisonucleosis were focally present. Mitotic count ranged from 11 to 61/2 mm. Punctate-type necrosis was present in 8 tumors. Anaplastic cytology, large infarct-type necrosis, desmoplasia, or marked inflammatory infiltrate was not found in any of the tumors. One tumor occurred in the background of diffuse idiopathic pulmonary neuroendocrine hyperplasia. All tumors were treated by resection, and all but 1 patient subsequently developed metastasis, and 7 died of the tumor. For metastatic tumors, 4 patients were treated by platinum-based chemotherapy with no apparent response, whereas 3 other patients were treated by combined capecitabine and temozolomide-novel chemotherapy for well-differentiated neuroendocrine tumor/carcinoid tumor-2 of them responded. This subset of tumor would be classified as large cell neuroendocrine carcinoma according to the current WHO classification scheme, but their clinical and pathologic features appear to have more in common with the carcinoid tumor group than large cell neuroendocrine carcinoma, therefore, identification of this subset may be relevant for further therapeutic management.
Collapse
|
17
|
Fabbri A, Cossa M, Sonzogni A, Papotti M, Righi L, Gatti G, Maisonneuve P, Valeri B, Pastorino U, Pelosi G. Ki-67 labeling index of neuroendocrine tumors of the lung has a high level of correspondence between biopsy samples and surgical specimens when strict counting guidelines are applied. Virchows Arch 2017; 470:153-164. [PMID: 28054150 DOI: 10.1007/s00428-016-2062-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 11/10/2016] [Accepted: 12/21/2016] [Indexed: 02/07/2023]
Abstract
Optimal histopathological analysis of biopsies from metastases of neuroendocrine tumor (NET) of the lung requires more than morphology only. Additional parameters such as Ki-67 labeling index are required for adequate diagnosis, but few studies have compared reproducibility of different counting protocols and modalities of reporting on biopsies of lung NET. We compared the results of four different manual counting techniques to establish Ki-67 LI. On 47 paired biopsies and surgical specimens from 22 typical carcinoids (TCs), 14 atypical carcinoids (ACs), six large cell neuroendocrine carcinomas (LCNECs), and five small cell carcinomas (SCCs) immunohistochemical staining of Ki-67 antigen was performed. We counted, in regions of highest nuclear staining (HSR), a full ×40-high-power field (diameter = 0.55 mm), 500 or 2000 cells, or 2 mm2 surface area, including the HSR or the entire biopsy fragment(s). Mitoses and necrosis were evaluated in an area of 2 mm2 or the entire biopsy fragment(s). Between the four counting methods, no differences in Ki-67 LI were observed. However, a Ki-67 LI higher than 5% was found in only four cases when in an HSR, 500 cells were counted (18%), five (23%) when in an HSR 2000 cells were counted, four (18%) when 2 mm2 were counted, and one (5%) TC case when the entire biopsy was counted. A 20% cutoff distinguished TC and AC from LCNEC and SCC with 100% specificity and sensitivity, while mitoses and necrosis failed to a large extent. Ki-67 LI in biopsy samples was concordant with that in resection specimens when 2000 cells, 2 mm2, or the entire biopsy fragment(s) were counted. Our results are important for clinical management of patients with metastases of a lung NET.
Collapse
Affiliation(s)
- Alessandra Fabbri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Mara Cossa
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Angelica Sonzogni
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Mauro Papotti
- Department of Oncology, University of Turin, Turin, Italy
| | - Luisella Righi
- Department of Oncology, University of Turin, Turin, Italy
| | - Gaia Gatti
- Department of Oncology, University of Turin, Turin, Italy
| | - Patrick Maisonneuve
- Division of Epidemiology and Biostatistics, European Institute of Oncology, Milan, Italy
| | - Barbara Valeri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Ugo Pastorino
- Division of Thoracic Surgery, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - Giuseppe Pelosi
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy.
- Department of Oncology and Hemato-oncology, Università degli Studi, Milan, Italy.
- Dipartimento di Oncologia ed Emato-oncologia, Via Festa del Perdono, 7, I-20122, Milan, Italy.
| |
Collapse
|
18
|
Diffuse Neuroendocrine Cell Hyperplasia: Report of Two Cases. Case Rep Pathol 2016; 2016:3419725. [PMID: 27293939 PMCID: PMC4886088 DOI: 10.1155/2016/3419725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/27/2016] [Indexed: 01/30/2023] Open
Abstract
Diffuse idiopathic pulmonary neuroendocrine cell hyperplasia (DIPNECH) is a rare pulmonary disorder characterised by a proliferation of neuroendocrine cells within the lung. It is believed that a minority of the patients with DIPNECH can develop carcinoid tumors. Here, we report two new cases of DIPNECH with coexisting carcinoid tumors.
Collapse
|
19
|
Walter RFH, Mairinger FD, Werner R, Ting S, Vollbrecht C, Theegarten D, Christoph DC, Zarogoulidis K, Schmid KW, Zarogoulidis P, Wohlschlaeger J. SOX4, SOX11 and PAX6 mRNA expression was identified as a (prognostic) marker for the aggressiveness of neuroendocrine tumors of the lung by using next-generation expression analysis (NanoString). Future Oncol 2016; 11:1027-36. [PMID: 25804118 DOI: 10.2217/fon.15.18] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Neuroendocrine tumors of the lung (NELC) account for 25% of all lung cancer cases and transcription factors may drive dedifferentiation of these tumors. This study was conducted to identify supportive diagnostic and prognostic biomarkers. MATERIALS & METHODS A total of 16 TC, 13 AC, 16 large cell neuroendocrine carcinomas and 15 small cell lung cancer were investigated for the mRNA expression of 11 transcription factors and related genes (MYB, MYBBP1A, OCT4, PAX6, PCDHB, RBP1, SDCBP, SOX2, SOX4, SOX11, TEAD2). RESULTS SOX4 (p = 0.0002), SOX11 (p < 0.0001) and PAX6 (p = 0.0002) were significant for tumor type. Elevated PAX6 and SOX11 expression correlated with poor outcome in large cell neuroendocrine carcinomas and small cell lung cancer (p < 0.0001 and p = 0.0232, respectively) based on survival data of 34 patients (57%). CONCLUSION Aggressiveness of NELC correlated with increasing expression of transcription factors. SOX11 seems to be a highly valuable diagnostic and prognostic marker for aggressive NELC.
Collapse
Affiliation(s)
- Robert Fred Henry Walter
- Ruhrlandklinik, West German Lung Center, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Derks JL, Hendriks LE, Buikhuisen WA, Groen HJ, Thunnissen E, van Suylen RJ, Houben R, Damhuis RA, Speel EJ, Dingemans AMC. Clinical features of large cell neuroendocrine carcinoma: a population-based overview. Eur Respir J 2015; 47:615-24. [DOI: 10.1183/13993003.00618-2015] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 07/27/2015] [Indexed: 01/14/2023]
Abstract
Pulmonary large cell neuroendocrine carcinoma (LCNEC) is an orphan disease and few data are available on its clinical characteristics. Therefore, we analysed LCNEC registered in the Netherlands Cancer Registry, and compared data with small cell lung carcinoma (SCLC), squamous cell carcinoma (SqCC) and adenocarcinoma (AdC).Histologically confirmed LCNEC (n=952), SCLC (n=11 844), SqCC (n=19 633) and AdC (n=24 253) cases were selected from the Netherlands Cancer Registry (2003–2012). Patient characteristics, metastasis at diagnosis (2006 or later), overall survival (OS) including multivariate Cox models and first-line treatment were compared for stage I–II, III and IV disease.The number of LCNEC cases increased from 56 patients in 2003 to 143 in 2012, accounting for 0.9% of all lung cancers. Stage IV LCNEC patients (n=383) commonly had metastasis in the liver (47%), bone (32%) and brain (23%), resembling SCLC. Median OS (95% CI) of stage I–II, III and IV LCNEC patients was 32.4 (22.0–42.9), 12.6 (10.3–15.0) and 4.0 (3.5–4.6) months, respectively. Multivariate-adjusted OS of LCNEC patients resembled that of SCLC patients, and was poorer than those of SqCC and AdC patients. However, frequency of surgical resection and adjuvant chemotherapy resembled SqCC and AdC more than SCLC.Diagnosis of LCNEC has increased in recent years. The metastatic pattern of LCNEC resembles SCLC as does the OS. However, early-stage treatment strategies seem more comparable to those of SqCC and AdC.
Collapse
|
21
|
Pelosi G, Fabbri A, Cossa M, Sonzogni A, Valeri B, Righi L, Papotti M. What clinicians are asking pathologists when dealing with lung neuroendocrine neoplasms? Semin Diagn Pathol 2015; 32:469-79. [PMID: 26561395 DOI: 10.1053/j.semdp.2015.10.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Lung neuroendocrine tumors (NET) are currently classified in resection specimens according to four histological categories, namely typical carcinoid (TC), atypical carcinoid (AC), large-cell neuroendocrine carcinoma (LCNEC) and small cell carcinoma (SCC). Diagnostic criteria have remained unchanged in the 2015 WHO classification, which has ratified the wide acceptance and popularity of such terminology in the pathologists׳ and clinicians׳ community. A unifying umbrella of NE morphology and differentiation has been recognized in lung NET, which has pushed to enter an unique box of invasive tumors along with diffuse idiopathic pulmonary NE cell hyperplasia (DIPNECH) as a pre-invasive lesion with a potential toward the development of carcinoids. However, uncertainties remain in the terminology of lung NET upon small samples, where Ki-67 antigen could play some role to avoid misdiagnosing carcinoids as high-grade NE tumors. Epidemiologic, clinical and genetic traits support a biological three-tier over a pathology four-tier model, according to which TC are low malignancy tumors, AC intermediate malignancy tumors and LCNEC/SCC high malignancy tumors with no significant differences in survival among them. Inconsistencies in diagnostic reproducibility, troubles in the therapy of AC and LCNEC, and limitations to histology within the same tumor category argue in favor of a global re-thinking of lung NET where a grading system could play a role. This review outlines three main key questions in the field of lung NET: (A) unbiased diagnoses, (B) the role of Ki-67 and tumor grading, and (C) management of predictive markers. Answers are still inconclusive, thus additional research is required to improve our understanding on lung NET.
Collapse
Affiliation(s)
- Giuseppe Pelosi
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Venezian, 1, I-20133, Milan, Italy; Department of Biomedical and Clinical Sciences "Luigi Sacco", Università degli Studi, Milan, Italy.
| | - Alessandra Fabbri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Venezian, 1, I-20133, Milan, Italy
| | - Mara Cossa
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Venezian, 1, I-20133, Milan, Italy
| | - Angelica Sonzogni
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Venezian, 1, I-20133, Milan, Italy
| | - Barbara Valeri
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via G. Venezian, 1, I-20133, Milan, Italy
| | - Luisella Righi
- Department of Pathology, University of Torino, Torino, Italy
| | - Mauro Papotti
- Department of Pathology, University of Torino, Torino, Italy
| |
Collapse
|
22
|
Abstract
Introduction Primary paraganglioma of the lung is a rare tumor of which few cases are reported in literature. Both solitary and diffuse primary pulmonary paragangliomas are described. The solitary form of this tumor is rare. Case presentation We report the case of a 63-year-old Caucasian man with cough, intermittent palpitations and dyspnea. A contrast-enhanced computed tomography scan of his chest revealed a rounded, high-density lesion with irregular profiles measuring 24mm in diameter in the middle lobe. The lesion was suggestive of malignancy. Fine-needle aspiration cytology was performed. The results of the cytological tests were positive for malignant cells. Surgical resection was the choice of treatment. The results of the biochemical tests and postoperative histological examination allowed a definitive diagnosis: primary pulmonary paraganglioma. Conclusions Paragangliomas are identified and characterized with the use of computed tomography and other imaging methods, but for a definitive diagnosis, histopathological evaluation is necessary. We report a rare case of a primary pulmonary paraganglioma that was treated surgically. This case report adds valuable knowledge to the literature on pulmonary paragangliomas.
Collapse
Affiliation(s)
- Giuseppe Fiorentino
- Division of Respiratory Physiopathology, Monaldi Hospital, Via Leonardo Bianchi, 1, 80131, Naples, Italy.
| | - Anna Annunziata
- Division of Respiratory Physiopathology, Monaldi Hospital, Via Leonardo Bianchi, 1, 80131, Naples, Italy.
| | - Nicolina De Rosa
- Division of Respiratory Physiopathology, Monaldi Hospital, Via Leonardo Bianchi, 1, 80131, Naples, Italy.
| |
Collapse
|
23
|
Abstract
PURPOSE OF REVIEW This review presents an update on classification, diagnosis and potentially 'drugable' molecular alterations of small cell carcinoma (SCC) and large cell neuroendocrine carcinoma (LCNEC) of the lung. RECENT FINDINGS The main controversies in the classification of lung neuroendocrine tumors are: whether SCC and LCNEC should remain separated or should be unified into a high-grade category; and what the role is of Ki67 as an adjunct to the classical parameters (mitotic rate and necrosis). Regarding the diagnosis of SCC and LCNEC, in difficult cases it requires the combined evaluation of clinical-radiological data, histological and cytological material and selected immunostains. The prognosis of both tumors remains very poor. Despite the promising identification of potential molecular targets on preclinical studies, including antiangiogenetic drugs and tricyclic antidepressants, at the moment no specific molecular-driven therapy is available. SUMMARY The field of high-grade neuroendocrine carcinomas remains complex in several respects, and studies on molecular targets are urgently needed.
Collapse
|
24
|
Cooper WA, Roberts F. Pulmonary pathology: new updates. J Clin Pathol 2013; 66:831. [PMID: 24067550 DOI: 10.1136/jclinpath-2013-201898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- W A Cooper
- Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, , Sydney, New South Wales, Australia
| | | |
Collapse
|
25
|
Swarts DRA, Van Neste L, Henfling MER, Eijkenboom I, Eijk PP, van Velthuysen ML, Vink A, Volante M, Ylstra B, Van Criekinge W, van Engeland M, Ramaekers FCS, Speel EJM. An exploration of pathways involved in lung carcinoid progression using gene expression profiling. Carcinogenesis 2013; 34:2726-37. [PMID: 23929435 DOI: 10.1093/carcin/bgt271] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Pulmonary carcinoids comprise a well-differentiated subset of neuroendocrine tumors usually associated with a favorable prognosis, but mechanisms underlying disease progression are poorly understood. In an explorative approach to identify pathways associated with progression, we compared gene expression profiles of tumors from five patients with a favorable and five with a poor disease outcome. Differentially expressed genes were validated using quantitative real-time PCR on 65 carcinoid tumors, in combination with survival analysis. One of the identified pathways was further examined using immunohistochemistry. As compared with other chromosomal locations, a significantly higher number of genes downregulated in carcinoids with a poor prognosis were located at chromosome 11q (P = 0.00017), a region known to be frequently lost in carcinoids. In addition, a number of upregulated genes were found involved in the mitotic spindle checkpoint, the chromosomal passenger complex (CPC), mitotic kinase CDC2 activity and the BRCA-Fanconi anemia pathway. At the individual gene level, BIRC5 (survivin), BUB1, CD44, IL20RA, KLK12 and OTP were independent predictors of patient outcome. For survivin, the number of positive nuclei was also related to poor prognosis within the group of carcinoids. Aurora B kinase and survivin, major components of the CPC, were particularly upregulated in high-grade carcinomas and may therefore comprise therapeutic targets for these tumors. To our knowledge, this is the first expression profiling study focusing specifically on pulmonary carcinoids and progression. We have identified novel pathways underlying malignant progression and validated several genes as being strong prognostic indicators, some of which could serve as putative therapeutic targets.
Collapse
Affiliation(s)
- Dorian R A Swarts
- Department of Molecular Cell Biology, GROW - School for Oncology & Developmental Biology, Maastricht University Medical Center, PO Box 616, 6200 MD Maastricht, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|