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Neuroendocrine neoplasm

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https://www.readbyqxmd.com/read/28915429/neuroendocrine-tumor-of-the-extrahepatic-bile-duct-a-case-report
#1
Tsuyoshi Abe, Azuma Nirei, Nobuyasu Suzuki, Yukitoshi Todate, Ayaka Azami, Mitsuru Waragai, Atai Sato, Yoshinao Takano, Noriyuki Nishino, Hideo Sakuma, Yasushi Teranishi
INTRODUCTION: Neuroendocrine tumors (NETs) of the extrahepatic bile ducts are extremely rare neoplasms arising from endocrine cells and have variable malignant potential. They most commonly occur in young females and usually present with painless jaundice. PRESENTATION OF CASE: Here we present the case of an asymptomatic 57-year-old woman with NET of the common bile duct that was incidentally discovered on abdominal ultrasound during a medical examination. She was admitted to our hospital with a diagnosis of hepatic hilar tumor...
September 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28910819/mechanisms-of-targeting-the-mdm2-p53-foxm1-axis-in-well-differentiated-intestinal-neuroendocrine-tumors
#2
Irina Grass, Franziska Briest, Dagmar Sedding, Markus Möbs, Friederike Christen, Joana Benecke, Karolin Fuchs, Daniel Kaemmerer, Stefanie Mende, Jörg Sänger, Almut Kunze, Christina Geisler, Helma Freitag, Florentine Lewens, Lina Worpenberg, Sara Iwaszkiewicz, Britta Siegmund, Wolfgang Walther, Michael Hummel, Patricia Grabowski
<br>Background/Aims: The tumor suppressor p53 is rarely mutated in gastroenteropancreatic neuroendocrine neoplasms (GEP-NEN) but they frequently show a strong expression of p53 negative regulators, rendering these tumors excellent targets for a p53 recovery therapy. Therefore, we analyzed the mechanisms of a p53 recovery therapy on intestinal neuroendocrine tumors in vitro and in vivo. METHODS: By western blot and immunohistochemistry, we found that in GEP-NEN biopsy material overexpression of MDM2 was present in intestinal NEN...
September 14, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28904734/a-17-year-old-male-with-a-small-bowel-neuroendocrine-tumor-flushing-differential-diagnosis
#3
Maria Alejandra Forero Molina, Elizabeth Garcia, Deyanira Gonzalez-Devia, Rafael García-Duperly, Alonso Vera
BACKGROUND: Neuroendocrine tumors (NETs) are heterogeneous neoplasms that originate from cells with a secretory function. Small bowel NETs (SB-NETs) are related to serotonin hypersecretion which causes: flushing, diarrhea, abdominal pain, bronchoconstriction and heart involvement, also known as carcinoid syndrome (CS). CS can be confused with an allergic reaction and thus should be considered as a differential diagnosis in the allergy consult. We present the case of a pediatric patient initially referred under the suspicion of food allergies...
2017: World Allergy Organization Journal
https://www.readbyqxmd.com/read/28900992/-clinicopathologic-characteristics-and-prognosis-of-rectal-neuroendocrine-neoplasms
#4
Tao Liu, Ping Liu, Tao Wu, Yisheng Pan, Guowei Chen, Pengyuan Wang, Yong Jiang, Yingchao Wu, Xin Wang
OBJECTIVE: To study the clinicopathologic characteristics and prognosis of rectal neuroendocrine neoplasms (NENs). METHODS: From January 2000 to May 2017, 84 patients were diagnosed as NENs by pathology and underwent surgical treatment in Peking University First Hospital. Their clinicopathological characteristics, surgial options and prognosis were analyzed retrospectively. RESULT: Among these 84 cases, 67 cases were NET G1, 6 cases were NET G2, 10 cases were NEC G3 and 1 case was MANEC G3...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900990/-prognostic-value-of-carcinoembryonic-antigen-alpha-fetoprotein-carbohydrate-antigen-125-and-carbohydrate-antigen-19-9-in-gastroenteropancreatic-neuroendocrine-neoplasms
#5
Luohai Chen, Yu Zhang, Minhu Chen, Jie Chen
OBJECTIVE: To study the rate of elevated common biomarkers of digestive tumors, including carcinoembryonic antigen (CEA), alpha fetoprotein (AFP), carbohydrate antigen 125 (CA125) and carbohydrate antigen 19-9 (CA19-9), in gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN) and their prognostic values in GEP-NEN. METHODS: Clinicopathological data of patients with GEP-NEN treated in The First Affiliated Hospital, Sun Yat-sen University from January 2011 to December 2016 were retrospectively studied...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900989/-clinicopathological-classification-and-prognostic-factors-of-gastrointestinal-neuroendocrine-neoplasms-an-analysis-of-119-cases
#6
Xinli Ma, Wenyi Zhao, Chun Zhuang, Xiaosong Wang, Lin Tu, Ming Wang, Yongwei Sun, Hui Cao
OBJECTIVE: To investigate the clinical characteristics, pathological classification and prognostic factors of gastrointestinal neuroendocrine neoplasms (GI-NENs). METHODS: Clinicopathological data of 119 GI-NENs patients at Shanghai Renji Hospital from November 2007 to December 2016 were analyzed retrospectively. According to the classification and grading criteria of the WHO Neuroendocrine Tumor 2010 edition, patients were classified pathologically to realize the malignant degree of tumors...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900988/-analysis-of-primary-site-and-pathology-on-903-patients-with-neuroendocrine-neoplasms
#7
Xudong Qiu, Meng Liu, Qing Liu, Zhiying Yang, Jixi Liu, Fanqiang Meng, Zaiyong Wang, Yanfen Shi, Liguo Liu, Pan Zhang, Jie Luo, Huangying Tan
OBJECTIVE: To explore the primary site and pathological feature of neuroendocrine neoplasm (NEN), especially the NEN of digestive system. METHODS: Clinicopathological data of NEN patients at China-Japan Friendship Hospital from January 2012 to December 2016 were retrospectively analyzed. Tumor primary sites were summarized. Association between tumor site and pathological grading in gastroenteropancreatic neuroendocrine neoplasm(GEP-NEN) was examined. RESULTS: There were a total of 903 cases of NEN...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900987/-consensus-and-controversy-of-endoscopic-diagnosis-and-treatment-of-gastroenteropancreatic-neuroendocrine-tumors
#8
Huishan Chen, Ye Chen
Neuroendocrine neoplasms(NENs) are relatively rare tumors originating from the diffuse neuroendocrine system, and gastrointestinal tract is one of the most common location of the tumors. Currently, the European Neuroendocrine Neoplasm Society (ENETS) and the National Comprehensive Cancer Network (NCCN) have released the international guidelines for NENs management. And also, experts from Chinese Society of Clinical Oncology (CSCO) have proposed "The Consensus on Gastroenteropancreatic Neuroendocrine Neoplasm in China" in 2016, which is also one of the most important reference standard for the diagnosis and treatment of gastroenteropancreatic(GEP) NENs in China...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28900986/-consensus-and-controversy-on-subtype-classification-of-gastric-neuroendocrine-neoplasms
#9
Huangying Tan
Gastric neuroendocrine neoplasms (g-NENs) are a heterogeneous group of tumors. Often silent, g-NENs may however be aggressive and sometimes mimic the course of gastric adenocarcinoma. Well-differentiated gastric neuroendocrine tumors (NET) can be subclassified into 3 distinct groups (type1, type 2 and type 3) according to Neuroendocrine Neoplasm Society (ENETS) guideline version 2006 as well as North America Neuroendocrine Tumor Society (NANETS) and National Comprehensive Cancer Network (NCCN) guidelines. However, since the publication of ENETS guideline version 2012, the subtype classification of g-NENs has been confusing due to the revised definition of type 3 g-NEN in versions 2012 and 2016...
September 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28899736/characterization-of-genome-wide-copy-number-aberrations-in-colonic-mixed-adenoneuroendocrine-carcinoma-and-neuroendocrine-carcinoma-reveals-recurrent-amplification-of-ptger4-and-myc-genes
#10
Namita Sinha, Daniel Gaston, Daniel Manders, Marissa Goudie, Makoto Matsuoka, Tao Xie, Weei-Yuarn Huang
Colonic Mixed adenoneuroendocrine Carcinoma (MANEC) is an aggressive neoplasm with worse prognosis compared to adenocarcinoma. To gain a better understanding of the molecular features of colonic MANEC, we characterized the genome-wide copy number aberrations (CNA) of 14 MANECs and 5 neuroendocrine carcinomas using the OncoScan FFPE assay. Compared to 269 colonic adenocarcinomas, 19 of 42 chromosomal arms of MANEC exhibited a similar frequency of major aberrant events as adenocarcinomas, and 13 chromosomal arms exhibited a higher frequency of copy number gains...
September 9, 2017: Human Pathology
https://www.readbyqxmd.com/read/28884744/pulmonary-large-cell-neuroendocrine-carcinoma-with-adenocarcinoma-like-features-napsin-a-expression-and-genomic-alterations
#11
Natasha Rekhtman, Catherine M Pietanza, Joshua Sabari, Joseph Montecalvo, Hangjun Wang, Omar Habeeb, Kyuichi Kadota, Prasad Adusumilli, Charles M Rudin, Marc Ladanyi, William D Travis, Philippe Joubert
Pulmonary large cell neuroendocrine carcinoma (LCNEC) is a highly aggressive malignancy, which was recently found to comprise three major genomic subsets: small cell carcinoma-like, non-small cell carcinoma (predominantly adenocarcinoma)-like, and carcinoid-like. To further characterize adenocarcinoma-like subset, here we analyzed the expression of exocrine marker napsin A, along with TTF-1, in a large series of LCNECs (n=112), and performed detailed clinicopathologic and genomic analysis of napsin A-positive cases...
September 8, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28882976/endobronchial-carcinoid-tumor-totally-occluding-the-left-main-bronchus-without-producing-symptoms-of-bronchial-obstruction
#12
Diamantis I Tsilimigras, Demetrios Moris, Ioannis Ntanasis-Stathopoulos, Davide Patrini, Nikolaos Panagiotopoulos
BACKGROUND: Bronchial carcinoid tumors (BCTs) are rare neuroendocrine neoplasms of the lung that mainly have a central distribution. They are classified as typical and atypical, with the former variant generally conferring a more favorable survival. Central tumors are usually symptomatic with features of bronchial obstruction, whereas peripheral tumors may remain silent. CASE REPORT: A 36-year-old woman presented to our hospital due to an episode of massive hemoptysis 5 days prior to admission...
September 2017: In Vivo
https://www.readbyqxmd.com/read/28878659/a-case-of-cervical-carcinoid-and-review-of-the-literature
#13
Georgios Papatsimpas, Ioannis Samaras, Paraskevi Theodosiou, Konstantina Papacharalampous, Eleni Maragkouli, N Vasileios Papadopoulos, Konstantinos Tsapakidis, Ioannis Litos, Eleni Sogka, Evanthia Kostopoulou, Georgios K Koukoulis
Uterine cervix carcinoids are distinct neuroendocrine cervical tumors, representing a comparatively small percentage of them. These well-differentiated neoplasms are far less prevalent than small- and large-cell carcinomas, characterized by a more favorable biological course. We report a case of a 43-year-old woman with a nonmetastatic cervical carcinoid, managed with radical hysterectomy. She still remains free of disease. Scant reports in the literature prohibit any reliable prediction of cervical carcinoid prognosis...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28876117/-duodenal-leiomyoma-a-rare-case-report
#14
Konrad Wroński, Janusz Kaczor, Zbigniew Masłowski
Neoplasms of the small bowel are rare and comprise only 1-5% of all gastrointestinal neoplasms. The most frequent malignant tumors located in the small bowel are adenocarcinomas, lymphomas and neuroendocrine tumors. Rarely observed are gastrointestinal stromal tumors (GIST), leiomyosarcomas and leiomyomas. Leiomyomas are most frequently seen in the jejunum followed by the ileum and lastly the duodenum. In most cases, a definite diagnosis of these tumors is not possible prior to surgical treatment. The treatment of choice for these tumors is surgery...
September 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28870048/-the-treatment-options-of-pancreatic-neuroendocrine-neoplasm-with-liver-metastasis
#15
C H Yuan, L Y Tao, D R Xiu
Liver metastasis is the one of the main prognostic factors of pancreatic neuroendocrine neoplasm (PNEN). With the development of multidisciplinary collaboration among surgical oncology, medical oncology, and intervention treatment, the treatment of PNEN with liver metastasis gradually tends to become diversification. Surgery is still the only way for curing the patients with pancreatic neuroendocrine tumor with liver metastasis when the histological types are G1 and G2. Medical oncology and intervention treatment could be selected for those having PNEN with diffuse liver metastasis or those cannot tolerate surgery...
September 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28867297/nomogram-to-predict-non-home-discharge-following-pancreaticoduodenectomy-in-a-national-cohort-of-patients
#16
Ibrahim Nassour, Sam C Wang, Alana Christie, Ali A Mokdad, Matthew R Porembka, Michael A Choti, Mathew M Augustine, Adam C Yopp, Xian-Jin Xie, John C Mansour, Rebecca M Minter, Patricio M Polanco
BACKGROUND: Despite the development of pathways to enhance recovery and discharge to home, a significant proportion of patients are discharged to inpatient facilities after pancreaticoduodenectomy (PD). The aim of this study was to determine the rate of non-home discharge (NHD) following PD in a national cohort of patients and to develop predictive nomograms for NHD. METHODS: The National Surgical Quality Improvement Program was used to construct and validate pre- and postoperative nomograms for NHD following PD...
August 31, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28864881/improving-quality-of-life-in-patients-with-pancreatic-neuroendocrine-tumor-following-peptide-receptor-radionuclide-therapy-assessed-by-eortc-qlq-c30
#17
Milka Marinova, Martin Mücke, Lukas Mahlberg, Markus Essler, Henning Cuhls, Lukas Radbruch, Rupert Conrad, Hojjat Ahmadzadehfar
INTRODUCTION: Neuroendocrine tumors (NETs) have proven to be appropriate neoplasms for peptide receptor radionuclide therapy (PRRT), as the majority of these slow-growing malignancies overexpress somatostatin receptors. The aim of this study was to evaluate changes in quality of life (QoL) of patients with P-NET following PRRT. METHODS: Sixty-eight patients with P-NET (31 female, mean age 61.4 y) underwent PRRT: 12 with NET of grade 1, 40 of grade 2, 8 of grade 3 (grade non-available n = 8)...
September 1, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28864610/iodine-symporter-targeting-with-124-i-131-i-theranostics
#18
James Nagarajah, Marcel Janssen, Philipp Hetkamp, Walter Jentzen
Theranostics, a modern approach combining therapeutics and diagnostics, is among the most promising concepts in nuclear medicine for optimizing and individualizing treatments for many cancer entities. Theranostics has been used in clinical routines in nuclear medicine for more than 60 y-as (131)I for diagnostic and therapeutic purposes in thyroid diseases. In this minireview, we provide a survey of the use of 2 different radioiodine isotopes for targeting the sodium-iodine symporter in thyroid cancer and nonthyroidal neoplasms as well as a brief summary of theranostics for neuroendocrine neoplasms and metastatic castration-refractory prostate cancer...
September 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28856815/prognoses-in-patients-with-primary-gastrointestinal-neuroendocrine-neoplasms-based-on-the-proposed-new-classification-scheme
#19
Xiao-Nan Yin, Chao-Yong Shen, Yi-Qiong Yin, Hui-Jiao Chen, Hai-Ning Chen, Yuan Yin, Lu-Yin Han, Jia-Ju Chen, Su-Min Tang, Zhi-Xin Chen, Bo Zhang
AIM: The aim of this study is to investigate the clinicopathological characteristics, as well as explore the prognostic accuracy of the proposed new classification in gastrointestinal NENs (GI-NENs) patients. METHODS: Patients diagnosed with GI-NENs were retrospectively indentified from existing databases of the pathological institute at our institution from January 2009 to November 2015. RESULTS: We identified 414 patients with GI-NENs, 250 cases were diagnosed as neuroendocrine tumor G1 (NET G1), 25 as neuroendocrine tumor G2 (NET G2), 53 as neuroendocrine tumor G3 (NET G3), 55 as neuroendocrine carcinoma G3 (NEC G3), and 31 as mixed adenoneuroendocrine carcinoma (MANEC); the overall survival (OS) rate at three years were 94...
August 30, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28856372/erratum-to-guideline-for-pet-ct-imaging-of-neuroendocrine-neoplasms-with-68-ga-dota-conjugated-somatostatin-receptor-targeting-peptides-and-18-f-dopa
#20
Murat Fani Bozkurt, Irene Virgolini, Sona Balogova, Mohsen Beheshti, Domenico Rubello, Clemens Decristoforo, Valentina Ambrosini, Andreas Kjaer, Roberto Delgado-Bolton, Jolanta Kunikowska, Wim J G Oyen, Arturo Chiti, Francesco Giammarile, Anders Sundin, Stefano Fanti
No abstract text is available yet for this article.
August 30, 2017: European Journal of Nuclear Medicine and Molecular Imaging
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