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neuroendocrin tumors of the pancreas

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https://www.readbyqxmd.com/read/29235006/intrinsic-contact-between-t-and-n-classifications-in-resected-well-moderately-differentiated-locoregional-pancreatic-neuroendocrine-neoplasms
#1
Jin-Zhi Xu, Wen-Quan Wang, Shi-Rong Zhang, Hua-Xiang Xu, Chun-Tao Wu, Zi-Hao Qi, He-Li Gao, Quan-Xing Ni, Liang Liu, Xian-Jun Yu
BACKGROUND: The role of N classification is controversial in several prognostication systems proposed for pancreatic neuroendocrine neoplasms (pNENs). The widely accepted modified European Neuroendocrine Tumor Society (mENETS) system suggests this contradiction may be related to T classification. METHODS: Data were collected retrospectively from 981 patients in the Surveillance, Epidemiology, and End Results (SEER) database (1973-2012; cohort 1) and 140 patients from the Pancreatic Cancer Institute of Fudan University (2006-2016; cohort 2)...
December 12, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29232342/intraoperative-near-infrared-fluorescence-imaging-of-multiple-pancreatic-neuroendocrine-tumors-a-case-report
#2
Henricus J M Handgraaf, Leonora S F Boogerd, Shirin Shahbazi Feshtali, Arantza Fariña Sarasqueta, Marieke Snel, Rutger-Jan Swijnenburg, Alexander L Vahrmeijer, Bert A Bonsing, J Sven D Mieog
Multiple endocrine neoplasia type 1 syndrome can feature pancreatic neuroendocrine lesions that have the potential to degenerate into malignancies (pancreatic neuroendocrine tumors [PNETs]). Resection is required in selected cases and aims to cure patients and to prevent metastasis. Preoperative imaging is important to assess the number, size, and location of PNETs. However, sensitivity of preoperative imaging modalities to detect small lesions can be rather disappointing. This makes intraoperative reassessment of the pancreas crucial...
January 2018: Pancreas
https://www.readbyqxmd.com/read/29218566/gastric-neuroendocrine-tumor-arising-from-heterotopic-pancreas
#3
Takehiro Tanaka, Rika Omote, Noriko Okazaki, Hiroyuki Yanai, Tadashi Yoshino
There are few English reports on secondary tumors from heterotopic pancreas. Here, we describe a case of gastric neuroendocrine tumor (NET) arising from heterotopic pancreas. A 72-year-old woman underwent esophagogastroduodenoscopy as part of a general health check-up. An endoscopic examination revealed a submucosal tumor on the greater curvature of the gastric body. Laparoscopic and endoscopic cooperative surgery was performed. Histological diagnosis concluded that it was a Grade 1 NET arising from heterotopic pancreas...
December 7, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29213282/determination-of-mammalian-target-of-rapamycin-hyperactivation-as-prognostic-factor-in-well-differentiated-neuroendocrine-tumors
#4
G Lamberti, C Ceccarelli, N Brighi, I Maggio, D Santini, C Mosconi, C Ricci, G Biasco, D Campana
Purpose: To evaluate the role of the activation of mTOR (phosphorylated mTOR, p-mTOR) and the expression SSTR2A and IGF-1R as prognostic factor in well-differentiated neuroendocrine tumors. Methods: A retrospective study was conducted on data from patients with diagnosis of neuroendocrine tumor originated from pancreas (pNET) or gastrointestinal tract (stomach, appendix, and ileus; GI-NET) made between January 2003 and December 2004 and followed up at our institution...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29212165/assessment-of-pancreatic-neuroendocrine-tumor-cytologic-genotype-diversity-to-guide-personalized-medicine-using-a-custom-gastroenteropancreatic-next-generation-sequencing-panel
#5
Ferga C Gleeson, Jesse S Voss, Benjamin R Kipp, Sarah E Kerr, John S Van Arnam, John R Mills, Cherisse A Marcou, Amber R Schneider, Zheng Jin Tu, Michael R Henry, Michael J Levy
Background: Recent genetic studies have highlighted that alterations in MEN1, chromatin remodeling genes, and mammalian target of rapamycin (mTOR) pathway genes are the most frequent molecular events identified in pancreas neuroendocrine tumors (pNETs). The prognostic or predictive impact of these biomarkers and other less frequently observed aberrations, i.e. PTEN, TSC2 and PIK3CA are relatively unknown. The aims of this targeted next generation sequencing (NGS) study were to assess tumor cytology genotype diversity, to survey for potential adverse prognostic biomarkers and the prevalence of mTOR pathway variants...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29211313/comparative-study-of-lung-and-extrapulmonary-poorly-differentiated-neuroendocrine-carcinomas-a-seer-database-analysis-of-162-983-cases
#6
Arvind Dasari, Kathan Mehta, Lauren A Byers, Halfdan Sorbye, James C Yao
BACKGROUND: Extrapulmonary neuroendocrine carcinomas (NECs) are poorly studied and are managed similar to lung NECs, which may not account for differences between the 2 groups of tumors as well as the heterogeneity within extrapulmonary NEC. METHODS: Data from the Surveillance, Epidemiology, and End Results program between 1973 and 2012 were used to estimate the relative percentages of lung NECs and subgroups of extrapulmonary NECs, epidemiological patterns at these sites, and the median and 5-year overall survival rates...
December 6, 2017: Cancer
https://www.readbyqxmd.com/read/29207860/therapy-of-pancreatic-neuroendocrine-tumors-fine-needle-intervention-including-ethanol-and-radiofrequency-ablation
#7
REVIEW
Sundeep Lakhtakia
Pancreatic neuroendocrine tumors (PNETs) are increasingly being detected, though usually as incidental findings. Majority of the PNETs are non-functional and surgical resection is the standard of care for most of them. However, in patients with small PNETs localized within the pancreas, who are unfit or unwilling for surgery, alternate methods of treatment are needed. Direct methods of ablation of PNETs, using either ethanol injection or radiofrequency ablation (RFA), are emerging as effective methods. The limited literature available as case reports or case series on endoscopic ultrasound (EUS)-guided local ablation using either ethanol or RFA has demonstrated safety and efficacy along with short- to medium-term sustained relief...
November 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/29206668/treatment-patterns-and-clinical-outcomes-in-patients-with-metastatic-gastroenteropancreatic-neuroendocrine-tumors-treated-in-the-community-practice-setting-in-the-united-states
#8
Xiaolong Jiao, Sonia Pulgar, Marley Boyd, Fadi Braiteh, Beloo Mirakhur, Susan Pitman Lowenthal, Patricia Fox, Jennifer Frytak, David Cox, Andrew Scott Paulson
OBJECTIVE: This study was conducted to understand treatment patterns and clinical outcomes in metastatic gastroenteropancreatic neuroendocrine tumor patients treated in a large community oncology network. METHODS: This retrospective study used the McKesson Specialty Health/US Oncology Network iKnowMed electronic health record database with supplemental chart review. Eligibility criteria included a metastatic neuroendocrine tumor diagnosis between January 1, 2008, and to December 31, 2012; at least 2 US Oncology Network visits; and age at least 18 years...
December 5, 2017: Pancreas
https://www.readbyqxmd.com/read/29191920/combined-test-of-serum-cga-and-nse-improved-the-power-of-prognosis-prediciton-of-nf-pnets
#9
Yang Lv, Xu Han, Chunyan Zhang, Yuan Fang, Ning Pu, Yuan Ji, Dansong Wang, Xuefeng Xu, Wenhui Lou
PURPOSE: Chromogranin-A (CgA) and neuron-specific enolase (NSE) are important markers for neuroendocrine tumors, however, the clinical value of combining these markers has not been well studied. In this study we investigated the utility of each marker individually and in combination for patients with nonfunctional pancreatic neuroendocrine tumors (NF-pNETs). PATIENTS AND METHODS: In this study, NF-pNETs patients and controls were recruited from December 2011 to March 2016; 784 serum samples from peripheral vein were collected...
November 30, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29181825/a-primary-hepatic-gastrinoma-accompanied-by-hyperplasia-of-multi-nodular-brunner-s-glands
#10
Takaomi Hagi, Yohei Hosoda, Izumi Komoto, Shinji Uemoto, Susumu Hijioka, Yoshiro Taki, Kazuhiro Nishiyama, Masayuki Imamura
BACKGROUND: Primary hepatic gastrinoma causing severe ulcerogenic syndrome is extremely rare. Herein, we report a case of primary hepatic gastrinoma accompanied by hyperplasia of multi-nodular Brunner's glands in a patient who instead, preoperatively, was suspected of having multiple duodenal gastrinomas and hepatic metastasis. CASE PRESENTATION: A 57-year-old woman consulted a clinic complaining of melena, intermittent abdominal pain, diarrhea, and vomiting which had persisted for about 3 years...
November 28, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/29177161/early-gastroenteropancreatic-neuroendocrine-tumors-endoscopic-therapy-and-surveillance
#11
REVIEW
Hans Scherübl, Guillaume Cadiot
Neuroendocrine neoplasias (NEN) of the stomach, duodenum, pancreas, appendix, or rectum that are ≤1 cm in size as well as well-differentiated with World Health Organization grade 1 (G1) can be considered 'early' neuroendocrine tumors; they have a very good prognosis. Regarding prognosis, neuroendocrine tumors (NET) G1 must be distinguished from well-differentiated NET G2 and poorly differentiated neuroendocrine carcinomas (NEC) G3. NET are increasing, with a rise in the age-adjusted incidence in the USA by about 700% in the last 40 years...
October 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29177160/neuroendocrine-neoplasms-dichotomy-origin-and-classifications
#12
REVIEW
Günter Klöppel
Neuroendocrine neoplasms (NENs) are heterogeneous tumors with a common phenotype. There are two fundamentally different groups of NENs: well-differentiated, low-proliferating NENs, called neuroendocrine tumors (NETs) or carcinoids, and poorly differentiated, highly proliferating NENs, called small- or large-cell neuroendocrine carcinomas (NECs). This NEN dichotomy is probably due to an origin from different neuroendocrine progenitor cells. The current World Health Organization (WHO) classification of gastrointestinal NENs uses the Ki67 proliferation index to grade NETs as G1 or G2, and NECs as G3...
October 2017: Visceral Medicine
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
#13
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/29143892/update-in-the-therapy-of-advanced-neuroendocrine-tumors
#14
REVIEW
Inbal Uri, Shani Avniel-Polak, David J Gross, Simona Grozinsky-Glasberg
Neuroendocrine tumors (NETs) are rare neoplasms, with an estimated annual incidence of ~ 6.9/100,000. NETs arise throughout the body from cells of the diffuse endocrine system. More than half originate from endocrine cells of the gastrointestinal tract and the pancreas, thus being referred to as gastroenteropancreatic NETs (GEP-NETs). The only treatment that offers a cure is surgery; however, most patients are diagnosed with metastatic disease, and curative surgery is usually not an option. These patients can be offered long-term systemic treatment, for both symptomatic relief and tumor growth suppression...
November 16, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/29124912/metastatic-medullary-thyroid-carcinoma-or-calcitonin-secreting-carcinoid-tumor-of-lung-a-diagnostic-dilemma-in-a-patient-with-lung-mass-and-thyroid-nodule
#15
Shifteh Vahidi, Jimmie Stewart, Khalid Amin, Emilian Racila, Faqian Li
Calcitonin-secreting neuroendocrine tumors are rare and have been reported in literature as case reports or case series in various organs including lung, pancreas, larynx, bladder, and ovary. These tumors have similar cytologic features and immunohistochemical profile to medullary thyroid carcinoma and thus it is difficult to distinguish them, especially when calcitonin-secreting neuroendocrine tumors are intermediate or higher grade and there is a mass lesion in the thyroid gland. Here, we report a rare case of calcitonin secreting atypical carcinoid tumor of the lung in a patient with thyroid nodule...
November 10, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29123358/chronic-cancer-pain-diagnostic-dilemma-and-management-challenges
#16
Deepti Ahuja, Sachidanand Jee Bharati, Seema Mishra, Sushma Bhatnagar
A 32-year-old female, diagnosed case of neuroendocrine tumor of pancreas, was admitted to the pain and palliative care unit with complaints of diffuse abdominal pain which was severe in intensity with score on numerical rating scale-9/10. Pain was not relieved even after taking tablet morphine immediate release 360 mg every 4 hourly, paracetamol 500 mg 6 hourly, and gabapentin 300 mg 8 hourly. She had undergone distal pancreatectomy with splenectomy and also received multiple lines of chemotherapy. After making a diagnosis of opioid-induced hyperalgesia, opioid rotation from morphine to fentanyl was done...
October 2017: Indian Journal of Palliative Care
https://www.readbyqxmd.com/read/29118556/long-non-coding-rna-in-pancreatic-adenocarcinoma-and-pancreatic-neuroendocrine-tumors
#17
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/29089709/co-existence-of-diffuse-serous-cystadenoma-and-pancreatic-neuroendocrine-tumor
#18
Mallika Tewari, Shashikant Patne, Richa Katiyar, Dipanjan Biswas, H S Shukla
Diffuse serous cystic neoplasm (SCN) associated with pancreatic neuroendocrine tumor (PNET) is a rare finding reported previously in only three patients to the best of our knowledge. We herein present one such interesting report of a diffuse serous cystic adenoma (SCA) and co-existent PNET in a 25-year old lady who presented with abdominal pain for past 6 months. A triple-phase pancreatic protocol computed tomography (CT) scan revealed multiple cysts involving the entire pancreas. The cysts were thin walled, ranging from 2 to 8 cm in width, with no calcification or central scar that was confirmed at laparotomy...
October 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29079172/akr1b10-expression-by-immunohistochemistry-in-surgical-resections-and-fine-needle-aspiration-cytology-material-in-patients-with-cystic-pancreatic-lesions-potential-for-improved-non-operative-diagnosis
#19
Joseph P Connor, Karla Esbona, Kristina A Matkowskyj
Cystic pancreatic tumors account for 10% of cystic lesions in the pancreas. Evaluation focuses on identifying lesions that require surgical resection due to actual or potential malignancy. Cystic tumors with malignant potential include mucinous cystic neoplasms (MCN), intraductal papillary mucinous neoplasm (IPMN), and cystic neuroendocrine tumors. The sensitivity of endoscopic fine-needle aspiration (FNA) to diagnose such lesions is low and a more accurate marker of malignant potential is needed. Aldo-keto reductase 1B10 (AKR1B10) was originally found in human hepatocellular carcinoma...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29076910/optimizing-somatostatin-receptor-imaging-in-patients-with-neuroendocrine-tumors-the-impact-of-99mtc-hynictoc-spect-spect-ct-versus-68ga-dotatate-pet-ct-upon-clinical-management
#20
Jolanta Kunikowska, Valerie Lewington, Leszek Krolicki
AIM: The presence of somatostatin receptors in neuroendocrine tumors allows visualization with radiolabeled somatostatin analogs in vivo. The aim of this prospective study was to compare somatostatin receptor imaging using Tc-HYNICTOC with Ga-DOTATATE (DOTA-DPhe1,Tyr3-octreotate) with respect to sensitivity, specificity, and impact upon clinical decision making. METHODS: Sixty-eight patients (30 men, 38 women; aged 56.4 ± 13.5 years) with disseminated, histologically proven neuroendocrine tumor were enrolled...
December 2017: Clinical Nuclear Medicine
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