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Neuroendocrine pancreatic tumor

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https://www.readbyqxmd.com/read/29150024/decreased-uchl1-expression-as-a-cytologic-biomarker-for-aggressive-behavior-in-pancreatic-neuroendocrine-tumors
#1
Maureen D Moore, Brendan Finnerty, Katherine D Gray, Rana Hoda, Yi-Fan Liu, Lauren Soong, Toni Beninato, Rema Rao, Rasa Zarnegar, Thomas J Fahey
BACKGROUND: There are currently no reliable markers associated with aggressive behavior in well-differentiated and moderately differentiated pancreatic neuroendocrine tumors. We aimed to determine whether expression of ubiquitin carboxyl-terminal hydrolase L1 in conjunction with Ki67 can identify metastatic potential of well-differentiated and moderately differentiated pancreatic neuroendocrine tumors from fine-needle aspiration samples obtained by endoscopic ultrasound. METHODS: Retrospective review of 48 patients with well-differentiated and moderately differentiated pancreatic neuroendocrine tumors diagnosed by endoscopic ultrasound fine-needle aspiration at a single center identified 35 biopsy samples with adequate material for analysis...
November 14, 2017: Surgery
https://www.readbyqxmd.com/read/29149451/transcriptional-alterations-in-hereditary-and-sporadic-nonfunctioning-pancreatic-neuroendocrine-tumors-according-to-genotype
#2
Xavier M Keutgen, Suresh Kumar, Sudheer Gara, Myriem Boufraqech, Sunita Agarwal, Ralph H Hruban, Naris Nilubol, Martha Quezado, Richard Finney, Maggie Cam, Electron Kebebew
BACKGROUND: Nonfunctioning pancreatic neuroendocrine tumors (NFPanNETs) may be sporadic or inherited because of germline mutations associated with von Hippel-Lindau disease (VHL) or multiple endocrine neoplasia type 1 (MEN1). The clinical behavior of NFPanNETs is difficult to predict, even in tumors of the same stage and grade. The authors analyzed genotype-specific patterns of transcriptional messenger RNA (mRNA) levels of NFPanNETs to understand the molecular features that determine PanNET phenotype...
November 17, 2017: Cancer
https://www.readbyqxmd.com/read/29146893/von-hippel-lindau-disease-with-multi-organ-involvement-a-case-report-and-8-year-clinical-course-with-follow-up
#3
Ali Yaghobi Joybari, Payam Azadeh
BACKGROUND Von Hippel-Lindau (VHL) disease is a rare autosomal dominant syndrome manifested by a spectrum of benign and malignant tumors.  CASE REPORT The patient presented here was a 31-year-old female with unremarkable family history who presented initially complaining of intermittent abdominal pain. Abdominal CT scan revealed an inhomogeneous solid mass (13×9×7 cm) originating from the tail of the pancreas with splenic and gastric invasion as well as several pancreatic cysts. A nucleotide scan showed left adrenal involvement...
November 17, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29143084/can-we-do-even-better-preoperative-imaging-overestimates-the-tumor-size-in-pancreatic-neuroendocrine-neoplasms-associated-with-multiple-endocrine-neoplasia-type-1
#4
https://www.readbyqxmd.com/read/29140113/prediction-of-pancreatic-neuroendocrine-tumor-grade-based-on-ct-features-and-texture-analysis
#5
Rodrigo Canellas, Kristine S Burk, Anushri Parakh, Dushyant V Sahani
OBJECTIVE: The purposes of this study were to assess whether CT texture analysis and CT features are predictive of pancreatic neuroendocrine tumor (PNET) grade based on the World Health Organization (WHO) classification and to identify features related to disease progression after surgery. MATERIALS AND METHODS: Preoperative contrast-enhanced CT images of 101 patients with PNETs were assessed. The images were evaluated for tumor location, tumor size, tumor pattern, predominantly solid or cystic composition, presence of calcification, presence of heterogeneous enhancement on contrast-enhanced images, presence of pancreatic duct dilatation, presence of pancreatic atrophy, presence of vascular involvement by the tumor, and presence of lymphadenopathy...
November 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29137016/binding-pancreaticogastrostomy-anastomosis-in-central-pancreatectomy-a-single-center-experience
#6
Pengcheng Kang, Zhidong Wang, Kaiming Leng, Xiangyu Zhong, Hao Wang, Ming Wan, Sheng Tai, Yunfu Cui
A growing number of central pancreatectomies are performed. However, reconstruction of pancreaticoenteral digestive continuity after central pancreatectomy remains debated. This study evaluates the short-term outcomes of binding pancreaticogastrostomy anastomosis in central pancreatectomy.We have reviewed our experience with 52 patients who underwent binding pancreaticogastrostomy following central pancreatectomy from February 2009 to March 2015. Indication includes 6 noninvasive intraductal papillary mucinous neoplasms, 11 neuroendocrine tumors, 12 solid pseudopapillary tumor, 9 serous cystadenoma, 6 mucinous cystadenoma, and 8 focal pancreatic traumas...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136022/prognostic-significance-of-cytokeratin-19-expression-in-pancreatic-neuroendocrine-tumor-a-meta-analysis
#7
Dong Cen, Jiang Chen, Zheyong Li, Jie Zhao, Xiujun Cai
BACKGROUND: Pancreatic neuroendocrine tumor (PNET) comprises 1-2% of all pancreatic tumors, but its incidence is increasing. Although many studies have investigated the correlation between cytokeratin 19 (CK-19) and PNET, the prognostic significance of CK-19 expression in PNET is inconclusive. METHODS: Eligible studies were retrieved from Pubmed, Elsevier, Embase, Cochrane Library and Web of Science databases. All relevant data were extracted to analyze the relationship between CK-19 and PNET...
2017: PloS One
https://www.readbyqxmd.com/read/29135613/68ga-dotatate-uptake-in-ischemic-stroke
#8
Émilie Vallée, Nancy Paquet, James Patrick Buteau, Éric Turcotte
A 76-year-old man known to have a pancreatic neuroendocrine tumor with hepatic and lymph nodes metastasis had a follow-up Ga-DOTATATE PET/CT before Lu-DOTATATE therapy. A new cerebral lesion expressing somatostatin receptors was discovered in the right temporal lobe, suggestive of an ischemic stroke territory. This was later confirmed from the hospital chart where an ischemic stroke was described a month ago.
November 11, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29134609/expression-of-p27-kip1-and-p18-ink4c-in-human-multiple-endocrine-neoplasia-type-1-related-pancreatic-neuroendocrine-tumors
#9
E B Conemans, G M Raicu-Ionita, C R C Pieterman, K M A Dreijerink, O M Dekkers, A R Hermus, W W de Herder, M L Drent, A N A van der Horst-Schrivers, B Havekes, P H Bisschop, G J Offerhaus, I H M Borel Rinkes, G D Valk, H Th M Timmers, M R Vriens
PURPOSE: Pancreatic neuroendocrine tumors are a major manifestation of multiple endocrine neoplasia type 1 (MEN1). This tumor syndrome is caused by germline mutations in MEN1, encoding menin. Insight into pathogenesis of these tumors might lead to new biomarkers and therapeutic targets for these patients. Several lines of evidence point towards a role for p27(Kip1) and p18(Ink4c) in MEN1-related tumor development in animal models for MEN1, but their contribution to human MEN1-related pancreatic neuroendocrine tumor development is not known...
November 13, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29134440/ki67-labeling-index-assessment-and-prognostic-role-in-gastroenteropancreatic-neuroendocrine-neoplasms
#10
REVIEW
Günter Klöppel, Stefano La Rosa
In 1983, a monoclonal antibody, Ki67, was generated, that labeled the nuclei of proliferating non-neoplastic and neoplastic cells. The name Ki67 derived from the city of Kiel (Ki) where the antibody was produced in the university department of pathology and refers to the number of the original clone (67). Systematic assessment of the proliferative activity of tumors using Ki67 started in the 1990s, when Ki67, which only worked on frozen tissue, was complemented by the antibody MIB-1 that also worked in formalin-fixed tissues...
November 13, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29134377/markers-of-systemic-inflammatory-response-are-prognostic-factors-in-patients-with-pancreatic-neuroendocrine-tumors-pnets-a-prospective-analysis
#11
Apostolos Gaitanidis, Dhaval Patel, Naris Nilubol, Amit Tirosh, Samira Sadowski, Electron Kebebew
BACKGROUND: The prognosis and behavior of pancreatic neuroendocrine tumors (PNETs) vary and may be divergent even at the same stage or tumor grade. Markers of systemic inflammatory response are readily available and are inexpensive, and have been shown to be prognostic factors in several cancers. OBJECTIVE: The aim of this study was to evaluate the prognostic utility of markers of systemic inflammatory response in patients with PNETs. METHODS: A prospective study of 97 patients with PNETs was performed (median follow-up of 15 months, range 12-73 months)...
November 13, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29132136/meg3-suppresses-human-pancreatic-neuroendocrine-tumor-cells-growth-and-metastasis-by-down-regulation-of-mir-183
#12
Yuan-Yuan Zhang, Hao-Miao Feng
BACKGROUND/AIMS: Pancreatic neuroendocrine tumors (pNETs) are rare neoplasms which arise from pancreatic islet cells. Recently, lncRNA MEG3 has been reported as a tumor suppressor in variety cancers. This study aimed to reveal the functional effects of MEG3 on pNETs which has not been uncovered previously. METHODS: The expression of MEG3, miR-183, and BRI3 in BON1 cells were altered by transfection with their specific vectors/shRNA, or mimic/inhibitor. Thereafter, cell viability, apoptosis, the protein expressions of cell cycle related factors, and apoptosis associated factors, as well as cell migration and invasion were respectively assessed by typan blue staining, flow cytometry, western blotting, and transwell assay...
November 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29127554/is-there-any-role-for-minimally-invasive-surgery-in-net
#13
REVIEW
M Thomaschewski, H Neeff, T Keck, H P H Neumann, T Strate, E von Dobschuetz
Neuroendocrine tumors (NET) represent the variability of almost benign lesions either secreting hormones occurring as a single lesion up to malignant lesions with metastatic potential. Treatment of NET is usually performed by surgical resection. Due to the rarity of NET, surgical treatment is mainly based on the experience and recommendations of experts and less on the basis of prospective randomized studies. In addition, the development and establishment of new surgical procedures is made more difficult by their rarity...
November 11, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/29124123/endoscopic-ultrasound-in-diagnosis-of-solid-pancreatic-lesions-elastography-or-contrast-enhanced-harmonic-alone-versus-the-combination
#14
Tanyaporn Chantarojanasiri, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takamichi Kuwahara, Takeshi Yamamura, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Masatoshi Ishigami, Osamu Watanabe, Senju Hashimoto, Akihiro Hirakawa, Thawee Ratanachu-Ek, Hidemi Goto
Background and study aims : Endoscopic ultrasound (EUS) elastography (EUS-E) and contrast-enhanced harmonic EUS (CH-EUS) are useful methods for the diagnosis of pancreatic lesions. This study aims to compare the accuracy of combined EUS-E and CH-EUS with that of EUS-E or CH-EUS alone in the differential diagnosis of pancreatic solid lesions. Patients and methods:  One hundred thirty-six patients with solid pancreatic lesions underwent EUS with both EUS-E and CH-EUS were included...
November 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/29122330/genotype-phenotype-pancreatic-neuroendocrine-tumor-relationship-in-multiple-endocrine-neoplasia-type-1-patients-a-23-year-experience-at-a-single-institution
#15
Ioannis Christakis, Wei Qiu, Samuel M Hyde, Gilbert J Cote, Elizabeth G Grubbs, Nancy D Perrier, Jeffrey E Lee
BACKGROUND: The aim of this study was to investigate the genotype-phenotype relationship of pancreatic neuroendocrine tumors in patients with multiple endocrine neoplasia type 1 treated at our institution. METHODS: We conducted a retrospective chart review of all patients with multiple endocrine neoplasia type 1 treated at our center from January 1993 to December 2015. Presence of a pancreatic neuroendocrine tumor was determined based on imaging performed at any time from presentation to conclusion of follow-up...
November 6, 2017: Surgery
https://www.readbyqxmd.com/read/29121944/first-experience-of-robotic-spleen-preserving-distal-pancreatectomy-in-a-child-with-insulinoma
#16
Ming-Gen Hu, Yuan-Hong Xiao, Dong-Da Song, Guo-Dong Zhao, Yan-Zhe Liu, Zheng Wang, Hao-Yu Li, Rong Liu
BACKGROUND: An insulinoma is a functional neuroendocrine pancreatic tumor, and surgical resection is indicated. Robot-assisted laparoscopic surgeries have been shown to be generally safe and feasible for treatment of pediatric cases of urologic and digestive disease. CASE PRESENTATION: In July 2016, a 9-year-old girl (24 kg, 120 cm) was admitted with a pancreatic tail insulinoma and underwent robot-assisted spleen-preserving laparoscopic distal pancreatectomy...
November 9, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29121860/pneumatosis-cystoides-intestinalis-associated-with-sunitinib-and-a-literature-review
#17
Yong Suk Lee, Jae Joon Han, Si-Young Kim, Chi Hoon Maeng
BACKGROUND: Pneumatosis cystoides intestinalis (PCI) is a rare self-limiting condition characterized by air-filled cysts within intestinal walls. Diagnosis should be prudent because it can mimic pneumoperitoneum leading to unnecessary treatment such as surgical exploration. Although various drugs including anti-neoplastic agents have been suggested as etiologies, cases related to sunitinib are sparse. Because of the rarity of this unusual side effect by sunitinib, we report the case report...
November 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29118690/pneumoperitoneum-after-endoscopic-retrograde-cholangiopancreatography-due-to-rupture-of-intrahepatic-bile-ducts-and-glisson-s-capsule-in-hepatic-metastasis-a-case-report-and-review-of-literature
#18
Zubair Khan, Umar Darr, Mohamad Nawras, Muhammad Bawany, Jacob Bieszczad, Osama Alaradi, Ali Nawras
Introduction: Endoscopic retrograde cholangiopancreatography (ERCP) has been proven to be a safe and effective method for diagnosis and treatment of biliary and pancreatic disorders. Major complications of ERCP include pancreatitis, hemorrhage, cholangitis, and duodenal perforation. We report a third case in literature of pneumoperitoneum after ERCP due to rupture of intrahepatic bile ducts and Glisson's capsule in a peripheral hepatic lesion. Case Report: A 50-year-old male with a history of metastatic pancreatic neuroendocrine tumor and who had a partially covered metallic stent placed in the biliary tree 1 year ago presented to the oncology clinic with fatigue, abdominal pain, and hypotension...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29118556/long-non-coding-rna-in-pancreatic-adenocarcinoma-and-pancreatic-neuroendocrine-tumors
#19
REVIEW
Dimitrios Moschovis, Maria Gazouli, Maria Tzouvala, Antonios Vezakis, George Karamanolis
Interest in non-coding regions of DNA has been increasing since the mapping of the human genome revealed that human DNA contains far fewer genes encoding proteins than previously expected. However, analysis of the derivatives of DNA transcription (transcriptomics) revealed that the majority of the genetic material is transcribed into non-coding RNA (ncRNA), indicating that these molecules probably provide the functional diversity and complexity of the physiology of the human body that cannot be attributed to the proteins...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29118267/clinical-usefulness-of-18-f-fluorodeoxyglucose-positron-emission-tomography-in-the-diagnostic-algorithm-of-advanced-entero-pancreatic-neuroendocrine-neoplasms
#20
Maria Rinzivillo, Stefano Partelli, Daniela Prosperi, Gabriele Capurso, Patrizia Pizzichini, Elsa Iannicelli, Elettra Merola, Francesca Muffatti, Francesco Scopinaro, Orazio Schillaci, Matteo Salgarello, Massimo Falconi, Gianfranco Delle Fave, Francesco Panzuto
BACKGROUND: The role of (18)F-fluorodeoxyglucose positron emission tomography ((18)F-FDG PET) in the diagnostic algorithm of entero-pancreatic neuroendocrine neoplasms (EP NENs) is unclear because most available data derive from heterogeneous populations in terms of tumor biology and disease status at time of examination. The aim of this study was to determine the ability of (18)F-FDG PET to identify patients with more aggressive disease among those with advanced EP NENs. Subjects, Materials, and Methods ...
November 8, 2017: Oncologist
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