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Neuroendocrine tumors of the lung

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https://www.readbyqxmd.com/read/28819503/-neuroendocrine-carcinoma-of-the-cervix-a-case-report-and-review-of-the-literature
#1
Soufiane Baggar, Hajar Ouahbi, Meryem Azegrar, Fatima Zahra El M'rabet, Samia Arifi, Nawfel Mellas
Small cell neuroendocrine carcinomas of the gynecologic tract are unusual, accounting for only 2% of the cervical cancers. Given the rarity of these tumors and the absence of randomized trials, their diagnosis and treatment programmes are difficult and are essentially based on those of neuroendocrine tumors of the lung. As in the case of the neuroendocrine tumors of the lung and despite multimodal treatment they are associated with a poor prognosis. We here report a new case of small cell neuroendocrine carcinoma of the cervix and, throught a literature review, we highlight the various aspects of this rare entity...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28807337/evaluation-of-cd43-expression-in-non-hematopoietic-malignancies
#2
Bjorn H Batdorf, Steven H Kroft, Paul R Hosking, Alexandra M Harrington, Alexander C Mackinnon, Horatiu Olteanu
OBJECTIVES: CD43 is normally expressed only on the surface of leukocytes, and is considered a sensitive and specific marker for hematologic malignancies. As such, it may have diagnostic utility in confirming hematolymphoid lineage in cases that are negative for CD45. Aberrant CD43 expression has been described in non-hematopoietic tumors, although literature data on this topic is variable and sometimes contradictory. To clarify and expand on existing literature findings, we evaluated CD43 expression by immunohistochemistry (IHC) in a large cohort (307) of non-hematopoietic neoplasms, including poorly differentiated malignancies...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28807335/recent-updates-on-grading-and-classification-of-neuroendocrine-tumors
#3
REVIEW
Joo Young Kim, Seung-Mo Hong, Jae Y Ro
Neuroendocrine tumors (NETs) are originating from neuroendocrine cells in diffuse endocrine systems. NETs are diagnosed by characteristic histologic features and immunoprofiles. Recent 2010 WHO classification for gastroenteropancreatic NETs introduced grading system based on mitotic count and Ki-67 proliferation index. Gastroenteropancreatic NETs are classified as NET grade 1, NET grade 2, and neuroendocrine carcinoma (NET grade 3). However, the carcinoid is still used in classification of NETs of the lung and uterine cervix...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28781783/neuroendocrine-carcinoma-of-the-lung-expressing-anaplastic-lymphoma-kinase-on-high-sensitivity-immunohistochemistry-a-case-report
#4
Kotoko Miyoshi, Yasushi Adachi, Hitoshi Nakaji, Akiharu Okamura, Yasuhiro Sakai, Ryuji Hirano, Shinsuke Yahata, Ming Li, Susumu Ikehara
It has been reported that anaplastic lymphoma kinase (ALK) protein is expressed in a proportion of non-small-cell carcinomas (mainly adenocarcinomas). By contrast, high-sensitivity immunohistochemistry (IHC) rarely detects ALK protein expression in neuroendocrine carcinomas (NECs) of the lung, which include small-cell carcinomas and large-cell neuroendocrine carcinomas (LCNECs). We herein present a case of NEC that was identified as ALK-positive via high-sensitivity IHC. A 51-year-old man was diagnosed with small-cell carcinoma in the upper lobe of the right lung...
August 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28777151/does-strong-and-diffuse-pax-8-positivity-occur-in-primary-lung-carcinoma-an-immunohistochemical-study-of-418-cases-and-review-of-the-literature
#5
Kelsey E McHugh, Andrea V Arrossi, Carol F Farver, Sanjay Mukhopadhyay
Although rare cases of PAX-8-positive primary lung carcinoma have been reported, details of staining distribution and intensity in such cases are limited. The aim of this study was to determine whether strong and diffuse PAX-8 staining can occur in primary lung carcinoma. Immunohistochemical staining for PAX-8 (Rabbit polyclonal, 10336-1-AP; Proteintech) was performed on whole-tissue sections from 418 resected primary lung carcinomas. PAX-8 was positive in 5/418 (1.2%) cases, all of which were large cell neuroendocrine carcinomas...
August 2, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28768973/histological-transformation-to-large-cell-neuroendocrine-carcinoma-from-lung-adenocarcinoma-harboring-an-egfr-mutation-an-autopsy-case-report
#6
Rika Moriya, Satoshi Hokari, Satoshi Shibata, Takeshi Koizumi, Takafumi Tetsuka, Kazuhiko Ito, Hideki Hashidate, Hiroki Tsukada
We herein report a 58-year-old Japanese woman who survived 14 years after surgery for lung adenocarcinoma harboring an epidermal growth factor receptor (EGFR) exon 19 deletion. She developed recurrence, for which she underwent multimodal therapy, including EGFR-tyrosine kinase inhibitor (TKI) administration. She ultimately died from a rapidly progressive right lung tumor that was resistant to EGFR-TKI. According to the autopsy findings, she had combined large-cell neuroendocrine carcinoma (LCNEC) and adenocarcinoma in the right lung, which retained an EGFR exon 19 deletion in both components...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28760232/biochemical-testing-in-neuroendocrine-tumors
#7
REVIEW
Vidya Aluri, Joseph S Dillon
Neuroendocrine cells are widely distributed throughout the body. They can produce, store, and secrete peptides and biogenic amines. Neuroendocrine tumors (NETs) are rare, but most are found in the intestine, pancreas, and lung. NETs may cause specific hormonal symptoms (eg, carcinoid syndrome) or appear nonfunctional. Blood or urine concentrations of tumor-secreted amines and peptides have been used as biomarkers in the diagnosis and management of NETs. This article focuses on currently available biochemical testing of blood or urine for gastroenteropancreatic and lung NETs and discusses the limitations of these tests and the potential role of newer multianalyte markers for NET management...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28739749/analysis-of-clinicopathological-features-and-prognostic-factors-in-39-cases-of-bladder-neuroendocrine-carcinoma
#8
Hui-Hui Zhou, Li-Yan Liu, Guo-Hua Yu, Gui-Mei Qu, Pei-You Gong, Xiao Yu, Ping Yang
AIM: Through analysis and summarization of clinicopathological features, immunohistochemical expression, pathological diagnostic criteria, prognostic and other factors in patients suffering from bladder neuroendocrine carcinoma (BNEC), a better understanding of BNEC could be achieved to provide solid evidence for clinicopathology and prognosis. MATERIALS AND METHODS: The clinicopathological data of 39 cases of BNEC with up to 5-year follow-up data (median follow-up=650 days) were analyzed retrospectively based on immunohistochemical staining...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28734185/primary-small-cell-neuroendocrine-carcinoma-of-the-breast-a-case-report-and-review-of-the-literature
#9
Abigail Tremelling, Selyne Samuel, Mary Murray
INTRODUCTION: Primary small cell neuroendocrine carcinoma of the breast (SCNCB) is a very uncommon type of breast cancer. Histology and morphology are virtually indistinguishable from small cell neuroendocrine carcinomas of the lung (SCNCL), mandating a search for a primary site elsewhere in the body. There is no standard approach to treatment as there are only a limited number of cases reported in the literature. This report summarizes a case of primary SCNCB and presents a review of the literature...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28731049/composite-hemangioendothelioma-with-neuroendocrine-marker-expression-an-aggressive-variant
#10
Kyle D Perry, Alyaa Al-Lbraheemi, Brian P Rubin, Jin Jen, Hongzheng Ren, Jin Sung Jang, Asha Nair, Jaime Davila, Stefan Pambuccian, Andrew Horvai, William Sukov, Henry D Tazelaar, Andrew L Folpe
Aberrant expression of neuroendocrine markers is extremely rare in endothelial neoplasms, with only a single report describing three cases. Although originally classified as conventional angiosarcoma, further assessment of these tumors revealed a strikingly composite morphology composed of retiform and epithelioid elements reminiscent of composite hemangioendothelioma, a rare subtype of hemangioendothelioma. To further investigate these findings, available materials from 11 morphologically distinctive endothelial tumors showing neuroendocrine marker expression were retrieved from our archives...
July 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28730258/morphology-with-immunohistochemical-and-genetic-profiling-of-high-grade-neuroendocrine-carcinoma-of-colon-a-case-report-with-review-of-literature
#11
Andrzej Wincewicz, Artur Kowalik, Sebastian Zięba, Stanisław Sułkowski, Stanisław Góźdź
Here we present a challenging case of a hepatic flexure colon tumor of 61-year-old woman with no primary lesion of lung cancer. Immunohistochemistry was applied and 50 genes were analyzed by next-generation sequencing (NGS) technology. The tumor contained medium to large size neoplastic cells with evident nucleoli to be diagnosed poorly differentiated neuroendocrine predominantly large cell carcinoma of colon [G3: World Health Organization (WHO) 2010] (pT3 N0: 7th edition pTNM). Cytokeratin (CK) AE1÷AE3 staining was predominantly membranous with partial distribution in "dot-like" pattern in perinecrotic cancer fields to be reminiscent of small cell carcinoma...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729431/sandostatin-lar-therapy-differentially-alters-68-ga-dotatate-uptake-in-normal-tissues-compared-to-primary-tumors-and-metastatic-lesions
#12
Narjess Ayati, Sze Ting Lee, Seyed Rasoul Zakavi, Kunthi Pathmaraj, Loai Qatawneh, Aurora Poon, Andrew Scott
Synthetic somatostatin analogs have been posed as a potential source of error in somatostatin receptor imaging by interfering with tumor detection; however, experimental models and clinical studies have shown a complex mechanism of octreotide effect on tumors. This study aimed to assess whether (68)Ga-DOTATATE uptake differs before and after treatment with long-acting somatostatin analogs. Methods: Thirty patients with intermediate to well differentiated neuroendocrine tumors (NET) who underwent (68)Ga-DOTATATE Positron Emission Tomography/Computed Tomography (PET/CT) scanning before and after receiving long-acting repeatable (LAR) Sandostatin were included in the study...
July 20, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28721067/phase-i-dose-escalation-study-of-long-acting-pasireotide-in-patients-with-neuroendocrine-tumors
#13
James C Yao, Jennifer A Chan, Alain C Mita, Madan G Kundu, Karina Hermosillo Reséndiz, Ke Hu, Shoba Ravichandran, Jonathan R Strosberg, Edward M Wolin
This phase I study aimed at determining the maximum tolerated dose (MTD) and characterizing the safety, tolerability, pharmacokinetics (PKs), and efficacy of pasireotide in patients with advanced neuroendocrine tumors (NETs). Patients were enrolled in two phases: dose-escalation phase (to determine the MTD) at a starting dose of 80 mg pasireotide long-acting release (LAR) i.m. followed by a dose-expansion phase (to evaluate safety and prelimi-nary efficacy). Associations between PK/pharmacodynamic parameters and clinical outcomes were evaluated using linear regression analysis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28719469/insm1-demonstrates-superior-performance-to-the-individual-and-combined-use-of-synaptophysin-chromogranin-and-cd56-for-diagnosing-neuroendocrine-tumors-of-the-thoracic-cavity
#14
Lisa M Rooper, Rajni Sharma, Qing Kay Li, Peter B Illei, William H Westra
Despite the importance of recognizing neuroendocrine differentiation when diagnosing tumors of the thoracic cavity, the sensitivity of traditional neuroendocrine markers is suboptimal, particularly for high-grade neuroendocrine carcinomas such as small cell lung carcinoma and large cell neuroendocrine carcinoma. To increase sensitivity, neuroendocrine markers are routinely ordered as panels of multiple immunostains where any single positive marker is regarded as sufficient evidence of neuroendocrine differentiation...
July 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28713683/do-we-really-care-about-incidental-lung-nodules-review-of-atypical-lung-carcinoid-and-a-proposal-for-systematic-patient-follow-up
#15
Henal Motiwala, Itisha Bansal, Pradeep Goyal, Olena Dorokhova, Yogesh Kumar, Thomas D Olsavsky, Albert DiMeo, Nishant Gupta
Atypical lung carcinoids are intermediate-grade neuroendocrine tumors (NETs) with malignant potential. They are often detected incidentally on imaging done for non-related causes, as the patients are frequently asymptomatic. Histopathology is required to confirm the diagnosis with immunohistochemistry (IHC). Due to their indolent nature, these are often diagnosed only in the advanced stages. Treatment options include chemoradiation for widespread disease versus surgery for local or minimally invasive disease...
June 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28710117/genetic-and-epigenetic-drivers-of-neuroendocrine-tumors-net
#16
Annunziata Di Domenico, Tabea Wiedmer, Ilaria Marinoni, Aurel Perren
Neuroendocrine tumors (NET) of the gastrointestinal tract and the lung are a rare and heterogeneous group of tumors. The molecular characterization and the clinical classification of these tumors have been evolving slowly and show differences according to organs of origin. Novel technologies such as next-generation sequencing revealed new molecular aspects of NET over the last years. Notably, whole exome/genome sequencing (WES/WGS) approaches underlined the very low mutation rate of well differentiated NET of all organs compared to other malignancies, while the engagement of epigenetic changes in driving NET evolution is emerging...
July 14, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28684922/emerging-use-of-everolimus-in-the-treatment-of-neuroendocrine-tumors
#17
REVIEW
Pablo Gajate, Olga Martínez-Sáez, Teresa Alonso-Gordoa, Enrique Grande
Neuroendocrine tumors (NETs) consist of a diverse family of malignancies, which are derived from neuroendocrine cells, most commonly originating from the gastroenteropancreatic (GEP) tract or the bronchopulmonary system. In general, NETs are more indolent than epithelial tumors, with median survival rates of longer than 30 months. The upregulation of mTOR pathway has been shown to play a pivotal role in NET pathogenesis. Inhibition of mTOR protein with everolimus represents a progress in the treatment of advanced NETs...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28671105/report-small-cell-neuroendocrine-carcinoma-scnec-of-the-tongue-a-case-report
#18
Li-Wei Xue, Xiao Chen, Dan-Dan Yin, Xu-Xia Wang
Small cell neuroendocrine carcinoma (SCNEC) of the tongue is very rare. We here present a SCNEC impatient with distant metastasis. A 74-year-old Chinese male went to hospital to treat a tongue tumor, which was founded at a conventional physical examination in Weifang Stomatology Hospital. The check of positron emission tomography-computer tomography (PET-CT) by Weifang people's hospital revealed a tumor in the right root of tongue, and distant metastasis in the right submandibular area, neck, mediastinum, right hilar, abdominal, retroperitoneal multiple lymph nodes, left thyroid, right lower lung, right scapula and bilateral adrenal...
May 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28667074/lsd1-inhibitor-t-3775440-inhibits-sclc-cell-proliferation-by-disrupting-lsd1-interactions-with-snag-domain-proteins-insm1-and-gfi1b
#19
Shinji Takagi, Yoshinori Ishikawa, Akio Mizutani, Shinji Iwasaki, Satoru Matsumoto, Yusuke Kamada, Toshiyuki Nomura, Kazuhide Nakamura
T-3775440 is an irreversible inhibitor of the chromatin demethylase LSD1, which exerts antiproliferative effects by disrupting the interaction between LSD1 and GFI1B, a SNAG domain transcription factor, inducing leukemia cell transdifferentiation. Here, we describe the anticancer effects and mechanism of action of T-3775440 in small-cell lung cancer (SCLC). T-3775440 inhibited proliferation of SCLC cells in vitro and retarded SCLC tumor growth in vivo T-3775440 disrupted the interaction between LSD1 and the transcriptional repressor INSM1, thereby inhibiting expression of neuroendocrine-associated genes, such as ASCL1 INSM1 silencing phenocopied the effects of T-3775440 on gene expression and cell proliferation, consistent with the likelihood T-3775440 mediated its effects in SCLC by inhibiting INSM1...
June 30, 2017: Cancer Research
https://www.readbyqxmd.com/read/28660221/triage-of-limited-versus-extensive-disease-on-18-f-fdg-pet-ct-scan-in-small-cell-lung-cancer
#20
Riaz Saima, Bashir Humayun, Niazi Imran Khalid
OBJECTIVES: Small cell lung cancer (SCLC) is an aggressive neuroendocrine carcinoma, which accounts for 10-15% of pulmonary cancers and exhibits early metastatic spread. This study aimed to determine the added value of (18)F-FDG PET/CT imaging in tumor, node, and metastasis (TNM) staging of SCLC, compared to the conventional computed tomography (CT) scan and its potential role as a prognosticator. METHODS: This retrospective review was conducted on 23 patients, who were histopathologically diagnosed to have SCLC and referred for undergoing (18)F-FDG PET/CT scanning during October 2009-December 2015...
2017: Asia Oceania Journal of Nuclear Medicine & Biology
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