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https://www.readbyqxmd.com/read/29912000/neoplasms-of-the-neuroendocrine-pancreas-an-update-in-the-classification-definition-and-molecular-genetic-advances
#1
Julie M Guilmette, Vania Nosé
This review focuses on discussing the main modifications of the recently published 2017 WHO Classification of Neoplasms of the Neuroendocrine Pancreas (panNEN). Recent updates separate pancreatic neuroendocrine tumors into 2 broad categories: well-differentiated pancreatic neuroendocrine tumors (panNET) and poorly differentiated pancreatic neuroendocrine carcinoma (panNEC), and incorporates a new subcategory of "well-differentiated high-grade NET (G3)" to the well-differentiated NET category. This new classification algorithm aims to improve the prediction of clinical outcomes and survival and help clinicians select better therapeutic strategies for patient care and management...
June 14, 2018: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/29904467/bringing-sasi-back-single-session-selective-arterial-secretin-injection-and-transarterial-embolization-of-intrahepatic-pancreatic-neuroendocrine-metastasis-in-a-men-1-patient
#2
Jawad S Hussain, Ravi N Srinivasa, Anthony Hage, Rudra Pampati, Jeffrey Forris Beecham Chick
SASI (selective arterial secretin injection) is a form of ASVS (arterial stimulation and venous sampling) used to localize pancreatic gastrinomas. This report aims to review the protocol for SASI and demonstrate its utility in localizing functional and nonfunctional gastrinomas. Even if a patient has a pancreatic mass and a laboratory profile fitting a specific endocrine syndrome, these may or may not be associated as has been previously demonstrated with adrenal vein sampling. We present a case where a patient underwent simultaneous SASI and bland embolization of a hepatic metastasis to facilitate partial pancreatectomy for Zollinger-Ellison syndrome...
April 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29864700/design-synthesis-and-in-vitro-evaluation-of-heterobivalent-peptidic-radioligands-targeting-both-grp-and-vpac-1-receptors-concomitantly-overexpressed-on-various-malignancies-is-the-concept-feasible
#3
Simon Lindner, Luise Fiedler, Björn Wängler, Peter Bartenstein, Ralf Schirrmacher, Carmen Wängler
Radiolabeled heterobivalent peptidic ligands (HBPLs), being able to address different receptors, are highly interesting tumor imaging agents as they can offer multiple advantages over monovalent peptide receptor ligands. However, few examples of radiolabeled HBPLs have been described so far. One promising approach is the combination of gastrin-releasing peptide receptor (GRPR)- and vasoactive intestinal peptide receptor subtype 1 (VPAC1 R)-targeting peptides into one single radioligand since gastrinomas, prostate and breast cancer have been shown to concomitantly or complementarily overexpress both receptors...
May 29, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29860931/gastrinoma-and-zollinger-ellison-syndrome-in-canids-a-literature-review-and-a-case-in-a-mexican-gray-wolf
#4
Jason D Struthers, Nick Robl, Valerie M Wong, Matti Kiupel
Gastrinoma, an infrequent diagnosis in middle-aged dogs, occurs with nonspecific gastrointestinal morbidity. Laboratory tests can yield a presumptive diagnosis, but definitive diagnosis depends on histopathology and immunohistochemistry. We describe a malignant pancreatic gastrinoma with lymph node metastases and corresponding Zollinger-Ellison syndrome in a Mexican gray wolf ( Canis lupus baileyi) and review this endocrine neoplasm in domestic dogs. A 12-y-old, captive, male Mexican gray wolf developed inappetence and weight loss...
June 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29788534/prospective-evaluation-of-68-ga-dotatate-pet-ct-in-limited-disease-neuroendocrine-tumors-and-or-elevated-serum-neuroendocrine-biomarkers
#5
Sophie Gabriel, Philippe Garrigue, Laetitia Dahan, Frédéric Castinetti, Frédéric Sebag, Karine Baumstark, Cendrine Archange, Jha Abhishek, Karel Pacak, Benjamin Guillet, David Taïeb
CONTEXT: The 68 Ga-labelled somatostatin analogues (68 Ga-DOTA-SSAs) is becoming popular as an important diagnostic tool in neuroendocrine tumors as evidenced by a growing number of reports detailing institutional experience with various DOTA peptides. However, only few prospective studies have compared 68 Ga-DOTA-SSAs and somatostatin receptor scintigraphy (SRS) in gastroenteropancreatic neuroendocrine tumors (GEP-NETs) and pulmonary neuroendocrine tumors. OBJECTIVE: The aim of our prospective study was to perform head-to-head comparison between 68 Ga-DOTATATE PET/CT and standard imaging work-up (SI) that included multiphasic CT, liver MRI, and SRS using single photon emission computed tomography...
May 22, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29736765/-primary-lymph-node-gastrinoma
#6
H Dralle
No abstract text is available yet for this article.
May 7, 2018: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/29726295/duodenal-neuroendocrine-neoplasms-a-still-poorly-recognized-clinical-entity
#7
Roberta Elisa Rossi, Emanuele Rausa, Federica Cavalcoli, Dario Conte, Sara Massironi
BACKGROUND: Duodenal neuroendocrine neoplasms (dNENs) are rare tumors, which usually show good prognosis. The optimal management of these tumors is still far from being clearly understood because of their rarity and the poor level of knowledge about their natural history. Herein, we have reviewed the literature on dNENs to collect and analyze the current data on epidemiology, diagnosis and management of these rare tumors. METHODS: Bibliographical searches were performed in PubMed, using the following keywords: duodenal neuroendocrine neoplasm; duodenum; gastrinoma; diagnosis; therapy; guidelines...
May 4, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29629318/role-of-surgery-in-pancreatic-neuroendocrine-tumor
#8
REVIEW
Kai Pun Wong, Julian Shun Tsang, Brian Hung-Hin Lang
Pancreatic neuroendocrine tumours (PNETs) are rare. They are generally accepted to be slow-growing and have an indolent course. These tumours can be non-functioning or functioning, consisting of a biochemically heterogeneous group of tumours including insulinomas, gastrinomas, carcinoids and glucagonomas. Although surgery remains the mainstay of treatment, controversy still exists especially for non-functioning tumours <2 cm in size. Whether these should be resected or undergo intensive surveillance remains unclear...
February 2018: Gland Surgery
https://www.readbyqxmd.com/read/29511413/a-rare-cause-of-abdominal-pain-and-mass-in-an-18-year-old-patient-a-diagnostic-dilemma
#9
Hassan Tariq, Muhammad Umar Kamal, Vamshidhar Vootla, Mohamed ElZaeedi, Masooma Niazi, Brian Gilchrist, Ariyo Ihimoyan, Anil Dev, Sridhar Chilimuri
We present a case of an 18-year-old male who presented with complains of abdominal pain, nausea and vomiting for 2 years. An esophagogastroduodenoscopy (EGD) revealed a 3 mm nodule on the lesser curvature of the stomach and prominent gastric folds. Biopsy of the nodule revealed a well-differentiated neuroendocrine tumor (NET) in lamina prop with focal extension into muscularis mucosa consistent with a gastric carcinoid. Tumor cells stained with neuron-specific enolase (NSE), chromogranin and synaptophysin only...
February 2018: Gastroenterology Research
https://www.readbyqxmd.com/read/29430219/disease-control-on-lanreotide-autogel%C3%A2-120-mg-in-a-patient-with-metastatic-gastrinoma-a-case-report
#10
Maridi Aerts, Hendrik Reynaert
Gastrinomas are functionally active pancreatic neuroendocrine tumors (NETs) secreting gastrin and are associated with local or regional metastases in 60% of the cases. Somatostatin analogs (SSAs) are currently recommended as a first-line treatment for the symptomatic treatment of NETs. Although antiproliferative activity of SSAs has been demonstrated in various cancer types in several in vivo and in vitro studies, clinical benefits with SSAs have been only achieved in a small proportion of patients. We report a disease control on a long-acting SSA lanreotide in a patient with metastatic gastrinoma...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29365025/incidence-and-prognosis-of-primary-gastrinomas-in-the-hepatobiliary-tract
#11
(no author information available yet)
No abstract text is available yet for this article.
March 1, 2018: JAMA Surgery
https://www.readbyqxmd.com/read/29181825/a-primary-hepatic-gastrinoma-accompanied-by-hyperplasia-of-multi-nodular-brunner-s-glands
#12
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
#13
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/29115998/effect-of-gastric-acid-suppressive-therapy-and-biological-variation-of-serum-gastrin-concentrations-in-dogs-with-chronic-enteropathies
#14
Romy M Heilmann, Nora Berghoff, Niels Grützner, Nolie K Parnell, Jan S Suchodolski, Jörg M Steiner
BACKGROUND: Serum gastrin concentration can help diagnose gastrinomas in dogs if >3-10× the upper reference limit (URL), but antisecretory therapy and other conditions can also cause hypergastrinemia. Effects of antisecretory therapy (famotidine or ranitidine, omeprazole) on serum gastrin concentration in dogs with chronic enteropathy (CE) and its biological variation (BV) are unknown. Aim of the study was to evaluate serum gastrin in acid-suppressant-treated or -naïve CE dogs; test the association between serum gastrin and histopathologic findings in acid-suppressant-naïve CE dogs; and evaluate the BV of serum gastrin in dogs not receiving any gastric acid suppressive therapy...
November 7, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29100851/enteric-glia-the-origin-of-duodenal-gastrinomas
#15
EDITORIAL
Brian D Gulbransen
No abstract text is available yet for this article.
December 2017: Gastroenterology
https://www.readbyqxmd.com/read/29019150/the-zollinger-ellison-syndrome-is-there-a-role-for-somatostatin-analogues-in-the-treatment-of-the-gastrinoma
#16
REVIEW
Valentina Guarnotta, Chiara Martini, Maria Vittoria Davì, Genoveffa Pizza, Annamaria Colao, Antongiulio Faggiano
PURPOSE: Analyze the role of somatostatin analogues (SSAs) in the treatment of sporadic and MEN1-related gastrinomas, trying to define whether recent trials have changed the landscape of gastrinoma therapy. METHODS: We evaluate the rationale of SSA use in the treatment of gastrinomas, summarize the current literature concerning the effect of SSAs on the control of Zollinger-Ellison syndrome (ZES) and gastrinomas tumor progression and discuss their role in the most recent guidelines...
April 2018: Endocrine
https://www.readbyqxmd.com/read/28949124/diagnosis-and-management-of-zollinger-ellison-syndrome-in-2018
#17
Claudio De Angelis, Pablo Cortegoso Valdivia, Ludovica Venezia, Mauro Bruno, Rinaldo Pellicano
Zollinger-Ellison syndrome (ZES) is a clinical syndrome characterized by gastric acid hypersecretion due to the ectopic secretion of gastrin by a gastrinoma, a neuroendocrine tumor (NET) which mostly develops in the duodenum and in the pancreas. This syndrome was first described by Zollinger and Ellison in 1964; if left untreated, ZES can lead to multiple complications mainly due to gastric hypersecretion and some patients can suffer from the complications of an advanced metastatic disease. Although its clinical features are considered typical, the diagnosis of ZES is often challenging for the clinician...
June 2018: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28859856/gastrin-induces-nuclear-export-and-proteasome-degradation-of-menin-in-enteric-glial-cells
#18
Sinju Sundaresan, Cameron A Meininger, Anthony J Kang, Amanda L Photenhauer, Michael M Hayes, Nirakar Sahoo, Jolanta Grembecka, Tomasz Cierpicki, Lin Ding, Thomas J Giordano, Tobias Else, David J Madrigal, Malcolm J Low, Fiona Campbell, Ann-Marie Baker, Haoxing Xu, Nicholas A Wright, Juanita L Merchant
BACKGROUND & AIMS: The multiple endocrine neoplasia, type 1 (MEN1) locus encodes the nuclear protein and tumor suppressor menin. MEN1 mutations frequently cause neuroendocrine tumors such as gastrinomas, characterized by their predominant duodenal location and local metastasis at time of diagnosis. Diffuse gastrin cell hyperplasia precedes the appearance of MEN1 gastrinomas, which develop within submucosal Brunner's glands. We investigated how menin regulates expression of the gastrin gene and induces generation of submucosal gastrin-expressing cell hyperplasia...
December 2017: Gastroenterology
https://www.readbyqxmd.com/read/28768698/the-future-medical-advances-in-men1-therapeutic-approaches-and-management-strategies
#19
REVIEW
Rachel S van Leeuwaarde, Joanne M de Laat, Carolina R C Pieterman, Koen Dreijerink, Menno R Vriens, Gerlof D Valk
Multiple endocrine neoplasia type 1 is a rare autosomal inherited disorder associated with a high risk for patients to simultaneously develop tumors of the parathyroid glands, duodenopancreatic neuroendocrine tumors and tumors of the anterior pituitary gland. Early identification of MEN1 in patients enables presymptomatic screening of manifestations, which makes timely interventions possible with the intention to prevent morbidity and mortality. Causes of death nowadays have shifted toward local or metastatic progression of malignant neuroendocrine tumors...
October 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28705492/primary-lymph-node-gastrinoma-a-single-institution-experience
#20
Yufei Chen, Vikram Deshpande, Cristina Ferrone, Lawrence S Blaszkowsky, Sareh Parangi, Andrew L Warshaw, Keith D Lillemoe, Carlos Fernandez-Del Castillo
BACKGROUND: Gastrinomas are rare neuroendocrine tumors that ectopically secrete gastrin and classically originate within the duodenum or pancreas. The presence of primary lymph node gastrinoma is controversial. We report on a single institution's experience with gastrinoma, with focus on primary lymph node tumors. METHODS: Patients who underwent operative resection of gastrinoma between 1992 and 2016 at a single institution were identified. A diagnosis of primary lymph node gastrinoma was defined as tumor confined to one or more resected peripancreatic lymph nodes, negative localization for any extra-nodal disease and normal gastrin postresection...
November 2017: Surgery
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