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Pancreatic neuroendocrine

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https://www.readbyqxmd.com/read/28644861/impact-of-ki67-re-assessment-at-time-of-disease-progression-in-patients-with-pancreatic-neuroendocrine-neoplasms
#1
Francesco Panzuto, Noemi Cicchese, Stefano Partelli, Maria Rinzivillo, Gabriele Capurso, Elettra Merola, Marco Manzoni, Eugenio Pucci, Elsa Iannicelli, Emanuela Pilozzi, Michele Rossi, Claudio Doglioni, Massimo Falconi, Gianfranco Delle Fave
BACKGROUND: Although re-assessment of proliferative activity by K67 evaluation during the course of neuroendocrine neoplasms (NENs) is recommended in selected patients, its impact on patients' management is not clear due to the lack of data supporting this practice. AIM: To investigate Ki67 change at time of progressive disease (PD) in entero-pancreatic NENs (EP-NENs). PATIENTS AND METHODS: Retrospective analysis of sporadic EP-NENs which received histological re-assessment after PD once radiologically documented...
2017: PloS One
https://www.readbyqxmd.com/read/28638801/pancreatic-neuroendocrine-tumor-grade-1-patients-followed-up-without-surgery-case-series
#2
Mitsuru Sugimoto, Tadayuki Takagi, Rei Suzuki, Naoki Konno, Hiroyuki Asama, Ko Watanabe, Jun Nakamura, Hitomi Kikuchi, Yuichi Waragai, Mika Takasumi, Satoshi Kawana, Yuko Hashimoto, Takuto Hikichi, Hiromasa Ohira
Among the three grades of neuroendocrine tumors (NETs), the prognosis for Grade 1 (G1) with surgery is very good. Therefore, we evaluated the prognoses of pancreatic NET (PNET) G1 patients without surgery. A total of 8 patients who were diagnosed with NET G1, with an observation period of more than 6 mo until surgery or without surgery, were recruited. The patients who underwent surgery were ultimately diagnosed using specimens obtained during the surgery, whereas the patients who did not undergo surgery were diagnosed using specimens obtained by endoscopic ultrasonography-guided fine needle aspiration...
June 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28634872/predictive-markers-of-response-to-everolimus-and-sunitinib-in-neuroendocrine-tumors
#3
Diana Martins, Francesca Spada, Ioana Lambrescu, Manila Rubino, Chiara Cella, Bianca Gibelli, Chiara Grana, Dario Ribero, Emilio Bertani, Davide Ravizza, Guido Bonomo, Luigi Funicelli, Eleonora Pisa, Dario Zerini, Nicola Fazio
Neuroendocrine tumors (NETs) represent a large and heterogeneous group of malignancies with various biological and clinical characteristics, depending on the site of origin and the grade of tumor proliferation. In NETs, as in other cancer types, molecularly targeted therapies have radically changed the therapeutic landscape. Recently two targeted agents, the mammalian target of rapamycin inhibitor everolimus and the tyrosine kinase inhibitor sunitinib, have both demonstrated significantly prolonged progression free survival in patients with advanced pancreatic NETs...
June 21, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/28626400/long-term-efficacy-of-s-1-chemotherapy-plus-administration-of-octreotide-for-a-patient-with-metastatic-neuroendocrine-tumor-gastrinoma
#4
Sakura Hiraide, Sadahide Ono, Satoshi Kato
Metastatic neuroendocrine tumors (gastrinomas) have a poor prognosis. Octreotide can reduce gastrin levels and alleviate hormonal symptoms, and possibly slow tumor growth as well. No drugs were available except streptozocin for the treatment of metastatic pancreatic neuroendocrine tumor (PNET) in 2008. We report a case of PNET in a 53-year-old woman with multiple liver tumors treated with S-1 plus octreotide. After 6 months from the initiation of the treatment, the pancreatic tumor and liver metastases regressed, and the patient achieved partial response without the development of any serious adverse event...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28624923/a-comparison-of-enhancement-patterns-on-dynamic-enhanced-ct-and-survival-between-patients-with-pancreatic-neuroendocrine-tumors-with-and-without-intratumoral-fibrosis
#5
Cherry Kim, Jae Ho Byun, Seung-Mo Hong, Soyeon An, Jin Hee Kim, Seung Soo Lee, Hyoung Jung Kim
PURPOSE: To compare CT findings and survival between patients with pancreatic neuroendocrine tumors (pNETs) with and without fibrosis. METHODS: Forty-five pNET patients with intratumoral fibrosis (group A) were matched for age, gender, and tumor size and grade with 45 pNET patients without (group B), and CT images were retrospectively reviewed. Hounsfield units (HUs) of tumors in unenhanced, arterial and portal phases, HU ratio (tumor to normal parenchyma) in each phase, enhancement patterns, visible enhancement pattern changes, and survival were compared...
June 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28624649/diffuse-enlargement-of-the-pancreas-an-unusual-radiologic-presentation-of-a-pancreatic-neuroendocrine-tumor
#6
Oscar Santes, Jesús Morales-Maza, Ismael Domínguez-Rosado
No abstract text is available yet for this article.
June 14, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28624441/hsp90-inhibitor-geldanamycin-attenuates-the-cytotoxicity-of-sunitinib-in-cardiomyocytes-via-inhibition-of-the-autophagy-pathway
#7
Takayuki Kimura, Mai Uesugi, Kazuma Takase, Norimasa Miyamoto, Kohei Sawada
Sunitinib malate (sunitinib) is an orally available, multitargeted tyrosine kinase inhibitor with antitumor and antiangiogenic activities. Although sunitinib is effective for the treatment of patients with gastrointestinal stromal tumor, advanced renal cell carcinoma, or pancreatic neuroendocrine tumor, adverse cardiac events associated with sunitinib administration have been reported. Here, we examined the effect of geldanamycin, an inhibitor of heat shock protein (Hsp) 90, on sunitinib-induced cytotoxicity in cardiomyocytes...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28624178/liver-transplantation-in-patients-with-liver-metastases-from-neuroendocrine-tumors-a%C3%A2-systematic-review
#8
Dimitrios Moris, Diamantis I Tsilimigras, Ioannis Ntanasis-Stathopoulos, Eliza W Beal, Evangelos Felekouras, Spiridon Vernadakis, John J Fung, Timothy M Pawlik
BACKGROUND: Liver transplantation to treat neuroendocrine tumors, especially in the setting of diffuse liver involvement not amenable to operative resection remains controversial. We sought to perform a systematic review of the current literature to summarize data on patients undergoing liver transplantation with neuroendocrine tumors liver metastases as the indication. METHODS: A systematic review was conducted in accordance to the Preferred Reporting Items for Systematic reviews and Meta-Analysis guidelines...
June 14, 2017: Surgery
https://www.readbyqxmd.com/read/28619285/5-fluorouracil-biomarkers-in-pancreatic-neuroendocrine-tumours
#9
EDITORIAL
Louis de Mestier, Jérôme Cros, Pascal Hammel
No abstract text is available yet for this article.
June 8, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28619284/assessment-of-disease-aggression-in-cystic-pancreatic-neuroendocrine-tumors-a-ct-and-pathology-correlation-study
#10
Motoyo Yano, Sunil Misra, Amber Salter, Danielle H Carpenter
BACKGROUND/OBJECTIVES: There are inconsistencies in the literature regarding the clinical significance of cystic components in pancreatic neuroendocrine tumors (NET). This may be related to differences in the identification of cystic NET through imaging and/or pathology. Tumors may also be microscopically or macroscopically cystic. Our primary objective is to determine radiology-pathology correlation for the identification of cystic components. Our secondary objective is to determine if cystic components are associated with indices of tumor aggression...
May 27, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28617885/the-role-of-wireless-capsule-endoscopy-wce-in-the-detection-of-occult-primary-neuroendocrine-tumors
#11
Manuele Furnari, Andrea Buda, Gabriele Delconte, Davide Citterio, Theodor Voiosu, Giovanni Ballardini, Flaminia Cavallaro, Edoardo Savarino, Vincenzo Mazzaferro, Emanuele Meroni
BACKGROUND AND AIMS: Neuroendocrine tumors (NETs) are a heterogeneous group of neoplasms with unclear etiology that may show functioning or non-functioning features. Primary tumor localization often requires integrated imaging. The European Neuroendocrine Tumors Society (ENETS) guidelines proposed wireless-capsule endoscopy (WCE) as a possible diagnostic tool for NETs, if intestinal origin is suspected. However, its impact on therapeutic management is debated. We aimed to evaluate the yield of WCE in detecting intestinal primary tumors in patients showing liver NET metastases when first-line investigations are inconclusive...
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28614428/intrapancreatic-accessory-spleen
#12
Marcelo Protásio Dos Santos, Aline Pacheco de Rezende, Paulo Vicente Dos Santos, José Eduardo Gonçalves, Fernando Bray Beraldo, Adriano Pereira Sampaio
An asymptomatic 79-year-old woman, with incidental finding on abdominal ultrasound of a solid nodule in the tail of the pancreas. Magnetic resonance imaging showed a 12mm solid tumor. The suggested diagnosis was pancreatic neuroendocrine tumor. The pathological examination showed an intrapancreatic splenic tissue. This is a rare ectopic location of spleen tissue and it should be considered in the differential diagnosis of pancreatic solid tumors. RESUMO Mulher de 79 anos, com achado incidental em ultrassonografia de abdome de lesão sólida em cauda de pâncreas...
June 12, 2017: Einstein
https://www.readbyqxmd.com/read/28614007/ectopic-cushing-s-syndrome-a-ten-year-experience-from-a-tertiary-care-centre-in-southern-india
#13
Samantha Sathyakumar, Thomas Vizhalil Paul, Hesargatta Shyamsunder Asha, Birla Roy Gnanamuthu, M J Paul, Deepak Thomas Abraham, Simon Rajaratnam, Nihal Thomas
OBJECTIVE: Ectopic ACTH secretion is a less common cause of Cushing's syndrome, and is seen in 5 to 10% of cases with endogenous hypercortisolemia. We hereby describe our experience of patients with ectopic ACTH syndrome, who have been managed over the past 10 years at a tertiary care centre in Southern India. METHODS: The inpatient and outpatient records of patients from 2006 to 2015 were retrospectively reviewed. The clinical features, clinical history, biochemical values, imaging features which included radiological findings and PET scans, management, details of follow-up and outcomes were documented...
June 14, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28610828/revised-nodal-stage-for-pancreatic-neuroendocrine-tumors
#14
Guopei Luo, Kaizhou Jin, He Cheng, Meng Guo, Yu Lu, Zhengshi Wang, Chao Yang, Jinzhi Xu, Heli Gao, Shirong Zhang, Bo Zhang, Jiang Long, Jin Xu, Quanxing Ni, Chen Liu, Xianjun Yu
BACKGROUND: Previously we have proposed a modified European Neuroendocrine Tumor Society (mENETS) staging system for pNETs, which is more suitable than either the American Joint Committee on Cancer (AJCC) or the European Neuroendocrine Tumor Society (ENETS) systems. However, it is necessary to revise the nodal stage of the mENETS system for the under representation of stage III diseases. METHODS: Nodal substages of the upper gastrointestinal organs (N0: 0 node, N1: 1-2 nodes; N2: ≥3 nodes) or the lower gastrointestinal organs (0: 0 node, N1: 1-3 nodes, and N2:≥ 4 nodes) were incorporated into the mENETS system and evaluated using the Surveillance, Epidemiology, and End Results (SEER) registry series...
June 10, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28609363/o6-methylguanine-dna-methyltransferase-status-does-not-predict-response-or-resistance-to-alkylating-agents-in-well-differentiated-pancreatic-neuroendocrine-tumors
#15
Nitya Raj, David S Klimstra, Natally Horvat, Liying Zhang, Joanne F Chou, Marinela Capanu, Olca Basturk, Richard Kinh Gian Do, Peter J Allen, Diane Reidy-Lagunes
OBJECTIVES: Alkylating agents have activity in well-differentiated pancreatic neuroendocrine tumors (WD panNETs). In glioblastoma multiforme, decreased activity of O-methylguanine DNA methyltransferase (MGMT) predicts response; in panNETs, MGMT relevance is unknown. METHODS: We identified patients with WD panNETs treated with alkylating agents, determined best overall response by Response Evaluation Criteria In Solid Tumors (RECIST) 1.1, and performed MGMT activity testing...
July 2017: Pancreas
https://www.readbyqxmd.com/read/28609362/everolimus-effect-on-gastrin-and-glucagon-in-pancreatic-neuroendocrine-tumors
#16
Marianne E Pavel, David Chen, Wei He, Stephanie Cushman, Maurizio Voi, Elisabeth G E de Vries, Eric Baudin, James C Yao
OBJECTIVES: The pharmacodynamic effects of everolimus on gastrointestinal hormone levels have not been described in patients with pancreatic neuroendocrine tumors (pNETs). We report the effects of everolimus on gastrin and glucagon levels in patients with progressive pNET in RADIANT-1 (a single-arm phase II trial) and RADIANT-3 (a placebo-controlled, randomized, phase III trial). METHODS: Serum gastrin and glucagon levels were determined by immunoassay at baseline and at predose in subsequent treatment cycles in patients with elevated baseline hormone levels...
July 2017: Pancreas
https://www.readbyqxmd.com/read/28599947/an-elderly-man-with-pancreatic-neuroendocrine-tumor-and-a-cavitary-right-upper-lobe-lung-mass
#17
Palla DeSilva, Adarsha Selvachandra, Jennifer Kanaan, Debapriya Datta
An elderly man presented to the ED from a nursing care facility after transient loss of consciousness. Three weeks previously, the patient had been diagnosed with a high-grade pancreatic neuroendocrine tumor (NET) with metastases to the liver after being hospitalized for weakness. A chest radiograph at that time had revealed a right upper lobe mass that was presumed to represent a metastatic lesion (Fig 1); CT of the chest demonstrated similar findings (Fig 2). The patient had recovered consciousness on arrival to the ED and was diagnosed clinically as having had a syncopal episode from dehydration due to poor intake...
June 2017: Chest
https://www.readbyqxmd.com/read/28599853/post-obstructive-cyst-formation-in-pancreas-and-cystic-acinar-transformation-are-they-same
#18
Xuchen Zhang, Hongfa Zhu, Xiu Yang, Volkan N Adsay, Dhanpat Jain
Pancreatic "acinar cell cystadenoma" (PACA) is a rare benign pancreatic cystic lesion showing acinar cell differentiation. The neoplastic nature of PACA has been questioned and its exact pathogenesis remains unclear. To investigate that acinar cell differentiation is a non-specific metaplastic phenomenon that can occur in pancreatic ductal system, especially when chronically inflamed and dilated, and doesn't necessarily imply an acinar cell neoplasm, we retrospectively analyzed cases diagnosed as PACA and cases with post-obstructive cystic dilatation of pancreatic ducts for acinar cell differentiation using immunohistochemistry for trypsin...
April 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28599415/value-of-diffusion-weighted-magnetic-resonance-imaging-in-predicting-world-health-organization-grade-in-g1-g2-pancreatic-neuroendocrine-tumors
#19
Chuangen Guo, Xiaoling Zhuge, Xiao Chen, Zhongqiu Wang, Wenbo Xiao, Qidong Wang
The present study aimed to investigate the value of diffusion-weighted magnetic resonance imaging (DWI) in the grading of well-differentiated pancreatic neuroendocrine tumors (PanNETs). A total of 44 patients with histologically proven well-differentiated PanNET [grade 1 (G1) and grade 2 (G2) according to the World Health Organization (WHO) criteria] underwent pretreatment magnetic resonance imaging (MRI), which was retrospectively analyzed. The location, size, cystic or solid appearance, boundary, presence or absence of tumor contrast enhancement, and MRI signal of the tumor were assessed...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597909/diagnostic-and-therapeutic-guidelines-for-gastro-entero-pancreatic-neuroendocrine-neoplasms-recommended-by-the-polish-network-of-neuroendocrine-tumours
#20
Beata Kos-Kudła, Jolanta Blicharz-Dorniak, Janusz Strzelczyk, Agata Bałdys-Waligórska, Tomasz Bednarczuk, Marek Bolanowski, Agnieszka Boratyn-Nowicka, Małgorzata Borowska, Andrzej Cichocki, Jarosław B Ćwikła, Massimo Falconi, Wanda Foltyn, Daria Handkiewicz-Junak, Alicja Hubalewska-Dydejczyk, Barbara Jarząb, Roman Junik, Dariusz Kajdaniuk, Grzegorz Kamiński, Agnieszka Kolasińska-Ćwikła, Aldona Kowalska, Robert Król, Leszek Królicki, Maciej Krzakowski, Jolanta Kunikowska, Katarzyna Kuśnierz, Paweł Lampe, Dariusz Lange, Anna Lewczuk-Myślicka, Andrzej Lewiński, Michał Lipiński, Magdalena Londzin-Olesik, Bogdan Marek, Anna Nasierowska-Guttmejer, Sergiusz Nawrocki, Ewa Nowakowska-Duława, Joanna Pilch-Kowalczyk, Violetta Rosiek, Marek Ruchała, Lucyna Siemińska, Anna Sowa-Staszczak, Teresa Starzyńska, Katarzyna Steinhof-Radwańska, Krzysztof Sworczak, Anhelli Syrenicz, Andrzej Szawłowski, Marek Szczepkowski, Ewa Wachuła, Wojciech Zajęcki, Anna Zemczak, Wojciech Zgliczyński, Krzysztof Zieniewicz
Progress in the diagnostics and therapy of gastro-entero-pancreatic (GEP) neuroendocrine neoplasms (NEN), the published results of new randomised clinical trials, and the new guidelines issued by the European Neuroendocrine Tumour Society (ENETS) have led the Polish Network of Neuroendocrine Tumours to update the 2013 guidelines regarding management of these neoplasms. We present the general recommendations for the management of NENs, developed by experts during the Third Round Table Conference - Diagnostics and therapy of gastro-entero-pancreatic neuroendocrine neoplasms: Polish recommendations in view of current European recommenda-tions, which took place in December 2016 in Żelechów near Warsaw...
2017: Endokrynologia Polska
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