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Pancreatic neuroendocrine tumour

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https://www.readbyqxmd.com/read/29912750/177lu-dotatate-therapy-in-patients-with-neuroendocrine-tumours-including-high-grade-who-g3-neuroendocrine-tumours-response-to-treatment-and-long-term-survival-update
#1
Emre Demirci, Levent Kabasakal, Turkay Toklu, Meltem Ocak, Onur E Şahin, Nalan Alan-Selcuk, Ahmet Araman
PURPOSE: Upon diagnosis, distant metastases are encountered in 21-50% of neuroendocrine tumours (NETs). However, few systemic treatment options are available for the well-differentiated NETs in the metastatic stage. Lu-DOTATATE is one of the most effective treatments in this limited patient group. We retrospectively investigated its efficacy and effect on the survival in patients with both well-differentiated and grade III NETs who had high uptake in pretherapeutic Ga-DOTATATE PET/computed tomography scans...
June 15, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29769293/emerging-multitarget-tyrosine-kinase-inhibitors-in-the-treatment-of-neuroendocrine-neoplasms
#2
Federica Grillo, Tullio Florio, Francesco Ferraù, Elda Kara, Giuseppe Fanciulli, Antongiulio Faggiano, Annamaria A L Colao
In the last few years, the therapeutic approach for neuroendocrine neoplasms (NENs) has changed dramatically following the approval of several novel targeted treatments. The multi-target tyrosine kinase inhibitor (MTKI), sunitinib malate, has been approved by regulatory agencies in pancreatic NENs. The MTKI class, however, includes several other molecules (approved for other conditions), which are currently being studied in NENs. An in depth review on the studies published on the following MTKIs in neuroendocrine tumours: axitinib, cabozantinib, famitinib, lenvatinib, nintedanib, pazopanib, sorafenib and sulfatinib was performed...
May 16, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29752349/paediatric-pancreatic-neuroendocrine-tumours-in-von-hippel-lindau-disease
#3
Samuel Matthew O'Toole, Anju Sahdev, Satya Bhattacharya, Roger Feakins, Evelien F Gevers, William Drake
Extract: Pancreatic neuroendocrine tumours (pNETs) are an established feature of von Hippel-Lindau disease (VHL), occurring in up to 17% of mutation carriers (Libutti et al. 2000; Blansfield et al. 2007; Erlic et al. 2010; Igarashi et al. 2014). The natural history of VHL-pNETs is poorly characterised with metastatic disease occurring in up to 25% of affected individuals (Erlic et al. 2010). Management of this unique pNET subgroup is complicated by the potential for multifocal and metachronous disease as well as extra-pancreatic VHL-related neoplasms (e...
May 11, 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29746922/diabetes-and-pancreatic-neuroendocrine-tumours-which-interplays-if-any
#4
REVIEW
Marco Gallo, Rosaria Maddalena Ruggeri, Giovanna Muscogiuri, Genoveffa Pizza, Antongiulio Faggiano, Annamaria Colao
Pancreatic neuroendocrine tumours (PanNETs) represent an uncommon type of pancreatic neoplasm, whose incidence is increasing worldwide. As per exocrine pancreatic cancer, a relationship seems to exist between PanNETs and glycaemic alterations. Diabetes mellitus (DM) or impaired glucose tolerance often occurs in PanNET patients as a consequence of hormonal hypersecretion by the tumour, specifically affecting glucose metabolism, or due to tumour mass effects. On the other hand, pre-existing DM may represent a risk factor for developing PanNETs and is likely to worsen the prognosis of such patients...
May 2, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29739708/usefulness-of-combined-imaging-with-68-ga-dotatoc-pet-ct-and-spleen-scintigraphy-in-differentiating-a-neuroendocrine-tumour-of-the-pancreatic-tail-from-splenic-lesions-in-a-patient-with-posttraumatic-splenosis
#5
J Maffey-Steffan, C Uprimny, R Moncayo, A S Kroiss, I J Virgolini
No abstract text is available yet for this article.
May 5, 2018: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29675259/successful-neoadjuvant-peptide-receptor-radionuclide-therapy-for-an-inoperable-pancreatic-neuroendocrine-tumour
#6
Tiago Nunes da Silva, M L F van Velthuysen, Casper H J van Eijck, Jaap J Teunissen, J Hofland, Wouter W de Herder
Non-functional pancreatic neuroendocrine tumours (NETs) can present with advanced local or distant (metastatic) disease limiting the possibility of surgical cure. Several treatment options have been used in experimental neoadjuvant settings to improve the outcomes in such cases. Peptide receptor radionuclide therapy (PPRT) using beta emitting radiolabelled somatostatin analogues has been used in progressive pancreatic NETs. We report a 55-year-old female patient with a 12.8 cm pancreatic NET with significant local stomach and superior mesenteric vein compression and liver metastases...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29629318/role-of-surgery-in-pancreatic-neuroendocrine-tumor
#7
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/29615284/external-beam-radiotherapy-in-the-treatment-of-gastroenteropancreatic-neuroendocrine-tumours-a-systematic-review
#8
D L Chan, R Thompson, M Lam, N Pavlakis, J Hallet, C Law, S Singh, S Myrehaug
AIMS: External beam radiotherapy (EBRT) is infrequently used to treat gastroenteropancreatic neuroendocrine tumours (GEPNETS), with little published data to date. We carried out a systematic review to assess the activity of EBRT for GEPNETS. MATERIALS AND METHODS: Major databases were searched for papers including at least five patients treated with contemporary EBRT techniques. Eligible studies underwent dual independent review. The primary end points were response rate for lesions treated with definitive intent and recurrence-free survival for primary lesions treated with neoadjuvant or adjuvant intent...
March 31, 2018: Clinical Oncology: a Journal of the Royal College of Radiologists
https://www.readbyqxmd.com/read/29594173/acinar-cell-cystadenoma-a-rarity-in-advanced-von-hippel-lindau-disease-a-case-report
#9
Tim Fahlbusch, Andrea Tannapfel, Waldemar Uhl, Chris Braumann
Background: Von Hippel-Lindau (VHL) disease may occur at various localisations which can be both intra- and extrapancreatic as well as challenging to diagnose by medical imaging. Case Report: A positron emission tomography/magnetic resonance imaging in a 40-year-old woman was performed to monitor a haemangioblastoma. Additionally, it showed findings which were considered to be a pancreatic neuroendocrine tumour (pNET) and retroumbilical metastasis. The suspected metastasis was laparoscopically resected; however, pathological evaluation did not lead to a clear categorisation...
February 2018: Visceral Medicine
https://www.readbyqxmd.com/read/29550809/presenting-symptoms-and-delay-in-diagnosis-of-gastrointestinal-and-pancreatic-neuroendocrine-tumours
#10
Ron Basuroy, Cathy Bouvier, John Ramage, Maia Sissons, Alexandra Kent, Raj Srirajaskanthan
<br>Introduction The gastrointestinal tract and pancreas are common primary sites for neuroendocrine tumours (NETs). Patients often report long duration of non-specific symptoms in the year prior to diagnosis. The aims of this study were to establish pre-diagnosis patterns of symptoms. Secondly, to determine the time from onset of symptoms to NET diagnosis and understand the interaction with primary and secondary healthcare providers. Method A survey was designed on a web-based survey platform with the focus on patient symptoms prior to diagnosis and a screen for functional diarrhoea (Rome III criteria (C4))...
March 18, 2018: Neuroendocrinology
https://www.readbyqxmd.com/read/29526248/predictive-factors-of-endocrine-and-exocrine-insufficiency-after-resection-of-a-benign-tumour-of-the-pancreas
#11
Hélène Neophytou, Marc Wangermez, Elise Gand, Michel Carretier, Jérôme Danion, Jean-Pierre Richer
BACKGROUND: The aim of the present study is to evaluate the risk factors of endocrine and exocrine insufficiency occurring few years after pancreatic resections in a consecutive series of patients who underwent pancreatoduodenectomy (PD), left pancreatectomy (LP) or enucleation for benign neoplasms at a referral centre. METHODS: Pancreatic exocrine insufficiency (PEI) was defined by the onset of steatorrhea associated with weight loss, and endocrine insufficiency was determinate by fasting plasma glucose...
April 2018: Annales D'endocrinologie
https://www.readbyqxmd.com/read/29518779/clinical-and-biomarker-evaluations-of-sunitinib-in-patients-with-grade-3-digestive-neuroendocrine-neoplasms
#12
Anna Pellat, Chantal Dreyer, Camille Couffignal, Thomas Walter, Catherine Lombard-Bohas, Patricia Niccoli, Jean François Seitz, Olivia Hentic, Thierry André, Romain Coriat, Sandrine Faivre, Magaly Zappa, Philippe Ruszniewski, Nicolas Pote, Anne Couvelard, Eric Raymond
BACKGROUND/AIMS: Angiogenesis is extensively developed in well-differentiated pancreatic neuroendocrine tumours (PanNET) where sunitinib was shown to prolong progression-free survival, leading to nationwide approval. However, clinical experience in patients with grade 3 gastroenteropancreatic neuroendocrine neoplasms (GEPNEN-G3) remains limited. This prospective phase II trial evaluated potential predictive biomarkers of sunitinib activity in patients with advanced GEPNEN-G3. METHODS: Sunitinib was given at a dose of 37...
March 8, 2018: Neuroendocrinology
https://www.readbyqxmd.com/read/29449689/current-and-emerging-therapies-for-pnets-in-patients-with-or-without-men1
#13
REVIEW
Morten Frost, Kate E Lines, Rajesh V Thakker
Pancreatic neuroendocrine tumours (PNETs) might occur as a non-familial isolated endocrinopathy or as part of a complex hereditary syndrome, such as multiple endocrine neoplasia type 1 (MEN1). MEN1 is an autosomal dominant disorder characterized by the combined occurrence of PNETs with tumours of the parathyroids and anterior pituitary. Treatments for primary PNETs include surgery. Treatments for non-resectable PNETs and metastases include biotherapy (for example, somatostatin analogues, inhibitors of receptors and monoclonal antibodies), chemotherapy and radiological therapy...
April 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29444910/the-neuroendocrine-phenotype-genomic-profile-and-therapeutic-sensitivity-of-gepnet-cell-lines
#14
Tobias Hofving, Yvonne Arvidsson, Bilal Almobarak, Linda Inge, Roswitha Pfragner, Marta Persson, Göran Stenman, Erik Kristiansson, Viktor Johanson, Ola Nilsson
Experimental models of neuroendocrine tumour disease are scarce, and no comprehensive characterisation of existing gastroenteropancreatic neuroendocrine tumour (GEPNET) cell lines has been reported. In this study, we aimed to define the molecular characteristics and therapeutic sensitivity of these cell lines. We therefore performed immunophenotyping, copy number profiling, whole-exome sequencing and a large-scale inhibitor screening of seven GEPNET cell lines. Four cell lines, GOT1, P-STS, BON-1 and QGP-1, displayed a neuroendocrine phenotype while three others, KRJ-I, L-STS and H-STS, did not...
March 2018: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29433805/proactive-multi-modality-treatment-of-pancreatic-neuroendocrine-tumours-pnets-potential-survival-benefits
#15
L Tanno, D Mayo, S Mills, A Takhar, J Cave, L Nolan, B Stedman, F X Sundram, M Abu Hilal, H Connor, N Pearce, T Armstrong
BACKGROUND/OBJECTIVES: Primary and metastatic pancreatic neuroendocrine tumours (PNET) can be treated with combination of surgery, locoregional and systemic therapy. Survival benefits from individual treatments have been well reported, however, the combined outcome from multimodal treatments are not well described in the literature. We report outcomes in a cohort of PNET patients treated with proactive, multimodality therapy. METHODS: 106 patients were identified from a single tertiary referral centre prospective database...
April 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29399966/morphologically-invisible-proinsulin-secreting-adenoma-detected-by-ga-68-exendin-4-glp-1-receptor-positron-emission-tomography-ct
#16
Christoph Werner, Amelie Lupp, Robert Drescher, Martin Freesmeyer, Masoud Mireskandari, Christian Stoykow, Astrid Bauschke, Ulrich A Müller
This case report of a young man suffering from recurring hypoglycaemia illustrates a rare condition of a neuroendocrine tumour, predominantly secreting proinsulin and invisible to conventional imaging approaches. Only a GLP-1 receptor PET/CT using Exendin-4 visualized the pancreatic lesion and enabled curative therapy, confirming the diagnostic value of this tracer for detection of neuroendocrine tumours. As only few publications on this topic are available, an overview of the available data is also given. The known cut-off value of 60% for proinsulin level indicating malignancy is critically discussed...
February 5, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29398971/incidental-detection-of-asymptomatic-brain-metastases-on-18-f-fluoride-positron-emission-tomography-computed-tomography-and-68-ga-dotanoc-positron-emission-tomography-computed-tomography-in-a-patient-with-concomitant-breast-carcinoma-and-a-pancreatic-neuroendocrine
#17
Ruth Brown, Phei Shan Chuah, Emmanouil Panagiotidis, Sobhan Vinjamuri
A 54-year-old female treated for locally advanced ductal breast carcinoma was also diagnosed with a pancreatic neuroendocrine tumour. A staging 68 Ga DOTANOC positron emission tomography/computed tomography (PET/CT) demonstrated somatostatin receptor-positive foci within the brain parenchyma. A whole body 18 F-fluoride PET/CT also demonstrated several foci of low-grade tracer uptake in the brain. Magnetic resonance imaging confirmed several cerebral and cerebellar metastases. This case highlights the need to be aware of each tumor's metastatic profile and the careful attention required for thoroughly evaluating imaging in the presence of multiple pathologies...
January 2018: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29367876/insulinoma-presenting-with-post-prandial-hypoglycaemia-following-fundoplication
#18
Sarah Y Qian, Matthew J L Hare, Alan Pham, Duncan J Topliss
Insulinomas are rare neuroendocrine tumours that classically present with fasting hypoglycaemia. This case report discusses an uncommon and challenging case of insulinoma soon after upper gastrointestinal surgery. A 63-year-old man presented with 6 months of post-prandial hypoglycaemia beginning after a laparoscopic revision of Toupet fundoplication. Hyperinsulinaemic hypoglycaemia was confirmed during a spontaneous episode and in a mixed-meal test. Localisation studies including magnetic resonance imaging (MRI), endoscopic ultrasound (EUS) and gallium dotatate positron emission tomography (68 Ga Dotatate PET) were consistent with a small insulinoma in the mid-body of the pancreas...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29352378/can-histogram-analysis-of-mr-images-predict-aggressiveness-in-pancreatic-neuroendocrine-tumors
#19
Riccardo De Robertis, Bogdan Maris, Nicolò Cardobi, Paolo Tinazzi Martini, Stefano Gobbo, Paola Capelli, Silvia Ortolani, Sara Cingarlini, Salvatore Paiella, Luca Landoni, Giovanni Butturini, Paolo Regi, Aldo Scarpa, Giampaolo Tortora, Mirko D'Onofrio
OBJECTIVES: To evaluate MRI derived whole-tumour histogram analysis parameters in predicting pancreatic neuroendocrine neoplasm (panNEN) grade and aggressiveness. METHODS: Pre-operative MR of 42 consecutive patients with panNEN >1 cm were retrospectively analysed. T1-/T2-weighted images and ADC maps were analysed. Histogram-derived parameters were compared to histopathological features using the Mann-Whitney U test. Diagnostic accuracy was assessed by ROC-AUC analysis; sensitivity and specificity were assessed for each histogram parameter...
January 19, 2018: European Radiology
https://www.readbyqxmd.com/read/29321190/genomic-landscape-of-pancreatic-neuroendocrine-tumours-the-international-cancer-genome-consortium
#20
REVIEW
Andrea Mafficini, Aldo Scarpa
Neuroendocrine tumours (NETs) may arise throughout the body and are a highly heterogeneous, relatively rare class of neoplasms difficult to study also for the lack of disease models. Despite this, knowledge on their molecular alterations has expanded in the latest years, also building from genetic syndromes causing their onset. Pancreatic NETs (PanNETs) have been among the most studied, and research so far has outlined a series of recurring features, as inactivation of MEN1 , VHL , TSC1/2 genes and hyperactivation of the PI3K/mTOR pathway...
March 2018: Journal of Endocrinology
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