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Neuroendocrine tumours

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https://www.readbyqxmd.com/read/28210802/poorly-differentiated-colorectal-neuroendocrine-tumour-ct-differentiation-from-well-differentiated-neuroendocrine-tumour-and-poorly-differentiated-adenocarcinomas
#1
Ji Hee Kang, Se Hyung Kim, Joon Koo Han
OBJECTIVE: The differentiation of poorly-differentiated neuroendocrine tumours (PD-NETs), well-differentiated NETs (WD-NETs), and adenocarcinomas (ADCs) is important due to different management options and prognoses. This study is to find the differential CT features of colorectal PD-NETs from WD-NETs and ADCs. MATERIALS AND METHODS: CT features of 25 colorectal WD-NETs, 36 PD-NETs, and 36 ADCs were retrospectively reviewed. Significant variables were assessed using univariate and multivariate analyses...
February 16, 2017: European Radiology
https://www.readbyqxmd.com/read/28203372/diagnostic-challenges-and-management-of-a-patient-with-acromegaly-due-to-ectopic-growth-hormone-releasing-hormone-secretion-from-a-bronchial-carcinoid-tumour
#2
Nikolaos Kyriakakis, Jacqueline Trouillas, Mary N Dang, Julie Lynch, Paul Belchetz, Márta Korbonits, Robert D Murray
: A male patient presented at the age of 30 with classic clinical features of acromegaly and was found to have elevated growth hormone levels, not suppressing during an oral glucose tolerance test. His acromegaly was originally considered to be of pituitary origin, based on a CT scan, which was interpreted as showing a pituitary macroadenoma. Despite two trans-sphenoidal surgeries, cranial radiotherapy and periods of treatment with bromocriptine and octreotide, his acromegaly remained active clinically and biochemically...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28199314/whole-genome-landscape-of-pancreatic-neuroendocrine-tumours
#3
Aldo Scarpa, David K Chang, Katia Nones, Vincenzo Corbo, Ann-Marie Patch, Peter Bailey, Rita T Lawlor, Amber L Johns, David K Miller, Andrea Mafficini, Borislav Rusev, Maria Scardoni, Davide Antonello, Stefano Barbi, Katarzyna O Sikora, Sara Cingarlini, Caterina Vicentini, Skye McKay, Michael C J Quinn, Timothy J C Bruxner, Angelika N Christ, Ivon Harliwong, Senel Idrisoglu, Suzanne McLean, Craig Nourse, Ehsan Nourbakhsh, Peter J Wilson, Matthew J Anderson, J Lynn Fink, Felicity Newell, Nick Waddell, Oliver Holmes, Stephen H Kazakoff, Conrad Leonard, Scott Wood, Qinying Xu, Shivashankar Hiriyur Nagaraj, Eliana Amato, Irene Dalai, Samantha Bersani, Ivana Cataldo, Angelo P Dei Tos, Paola Capelli, Maria Vittoria Davì, Luca Landoni, Anna Malpaga, Marco Miotto, Vicki L J Whitehall, Barbara A Leggett, Janelle L Harris, Jonathan Harris, Marc D Jones, Jeremy Humphris, Lorraine A Chantrill, Venessa Chin, Adnan M Nagrial, Marina Pajic, Christopher J Scarlett, Andreia Pinho, Ilse Rooman, Christopher Toon, Jianmin Wu, Mark Pinese, Mark Cowley, Andrew Barbour, Amanda Mawson, Emily S Humphrey, Emily K Colvin, Angela Chou, Jessica A Lovell, Nigel B Jamieson, Fraser Duthie, Marie-Claude Gingras, William E Fisher, Rebecca A Dagg, Loretta M S Lau, Michael Lee, Hilda A Pickett, Roger R Reddel, Jaswinder S Samra, James G Kench, Neil D Merrett, Krishna Epari, Nam Q Nguyen, Nikolajs Zeps, Massimo Falconi, Michele Simbolo, Giovanni Butturini, George Van Buren, Stefano Partelli, Matteo Fassan, Kum Kum Khanna, Anthony J Gill, David A Wheeler, Richard A Gibbs, Elizabeth A Musgrove, Claudio Bassi, Giampaolo Tortora, Paolo Pederzoli, John V Pearson, Nicola Waddell, Andrew V Biankin, Sean M Grimmond
The diagnosis of pancreatic neuroendocrine tumours (PanNETs) is increasing owing to more sensitive detection methods, and this increase is creating challenges for clinical management. We performed whole-genome sequencing of 102 primary PanNETs and defined the genomic events that characterize their pathogenesis. Here we describe the mutational signatures they harbour, including a deficiency in G:C > T:A base excision repair due to inactivation of MUTYH, which encodes a DNA glycosylase. Clinically sporadic PanNETs contain a larger-than-expected proportion of germline mutations, including previously unreported mutations in the DNA repair genes MUTYH, CHEK2 and BRCA2...
February 15, 2017: Nature
https://www.readbyqxmd.com/read/28197876/enhancing-pancreatic-mass-with-normal-serum-ca19-9-key-mdct-features-to-characterize-pancreatic-neuroendocrine-tumours-from-its-mimics
#4
Liang Zhu, Hua-Dan Xue, Wei Liu, Xuan Wang, Xin Sui, Qin Wang, Daming Zhang, Ping Li, Zheng-Yu Jin
OBJECTIVES: To determine key MDCT features for characterizing pancreatic neuroendocrine tumours (PNET) from their mimics, which manifest as enhancing pancreatic mass with normal serum CA19-9 level. METHODS: This retrospective study had institutional review board approval and informed consent was waived. Preoperative multiphase MDCT of 74 patients with enhancing pancreatic masses and normal serum CA19-9 levels were included. Surgical pathologies were PNET (n = 42), microcystic serous cystadenomas (m-SCN, n = 12) and solid pseudopapillary epithelial neoplasms (SPEN, n = 20)...
February 15, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28195647/molecular-classification-of-urothelial-carcinoma-global-mrna-classification-versus-tumour-cell-phenotype-classification
#5
Gottfrid Sjödahl, Pontus Eriksson, Fredrik Liedberg, Mattias Höglund
Global mRNA expression analysis is efficient for phenotypic profiling of tumours and has been used to define molecular subtypes for almost every major tumour type. A key limitation is that most tumours are communities of both tumour and non-tumour cells. This problem is particularly pertinent when analysing advanced invasive tumours, known to induce major changes and responses in both the tumour and the surrounding tissue. To identify bladder cancer tumour-cell phenotypes and compare classification by tumour-cell phenotype with classification by global gene expression analysis, we analysed 307 advanced bladder cancers (cystectomised) both by genome gene expression analysis and by immunohistochemistry using antibodies for 28 proteins...
February 13, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28194228/guidelines-for-the-management-of-neuroendocrine-tumours-by-the-brazilian-gastrointestinal-tumour-group
#6
Rachel P Riechelmann, Rui F Weschenfelder, Frederico P Costa, Aline Chaves Andrade, Alessandro Bersch Osvaldt, Ana Rosa P Quidute, Allan Dos Santos, Ana Amélia O Hoff, Brenda Gumz, Carlos Buchpiguel, Bruno S Vilhena Pereira, Delmar Muniz Lourenço Junior, Duilio Reis da Rocha Filho, Eduardo Antunes Fonseca, Eduardo Linhares Riello Mello, Fabio Ferrari Makdissi, Fabio Luiz Waechter, Francisco Cesar Carnevale, George B Coura-Filho, Gustavo Andrade de Paulo, Gustavo Colagiovanni Girotto, João Evangelista Bezerra Neto, João Glasberg, Jose Claudio Casali-da-Rocha, Juliana Florinda M Rego, Luciana Rodrigues de Meirelles, Ludhmila Hajjar, Marcos Menezes, Marcello D Bronstein, Marcelo Tatit Sapienza, Maria Candida Barisson Villares Fragoso, Maria Adelaide Albergaria Pereira, Milton Barros, Nora Manoukian Forones, Paulo Cezar Galvão do Amaral, Raphael Salles Scortegagna de Medeiros, Raphael L C Araujo, Regis Otaviano França Bezerra, Renata D'Alpino Peixoto, Samuel Aguiar, Ulysses Ribeiro, Tulio Pfiffer, Paulo M Hoff, Anelisa K Coutinho
Neuroendocrine tumours are a heterogeneous group of diseases with a significant variety of diagnostic tests and treatment modalities. Guidelines were developed by North American and European groups to recommend their best management. However, local particularities and relativisms found worldwide led us to create Brazilian guidelines. Our consensus considered the best feasible strategies in an environment involving more limited resources. We believe that our recommendations may be extended to other countries with similar economic standards...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/28193628/management-of-endocrine-disease-neuroendocrine-surveillance-and-management-of-neurosurgical-patients-non-pituitary
#7
Aoife Garrahy, Mark Sherlock, Chris J Thompson
Advances in the management of traumatic brain injury, subarachnoid haemorrhage and intracranial tumours have led to improved survival rates and an increased focus on quality of life of survivors. Endocrine sequelae of the acute brain insult and subsequent neurosurgery, peri-operative fluid administration and/or cranial irradiation are now well described. Unrecognized acute hypopituitarism, particularly ACTH/cortisol deficiency and diabetes insipidus, can be life-threatening. While hypopituitarism may be transient, up to 30% of survivors of TBI have chronic hypopituitarism, which can diminish quality of life and hamper rehabilitation...
February 13, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28179320/detection-of-somatic-mutations-in-gastroenteropancreatic-neuroendocrine-tumors-using-targeted-deep-sequencing
#8
Samuel Backman, Olov Norlén, Barbro Eriksson, Britt Skogseid, Peter Stålberg, Joakim Crona
: Mutations affecting the mechanistic target of rapamycin (MTOR) signalling pathway are frequent in human cancer and have been identified in up to 15% of pancreatic neuroendocrine tumours (NETs). Grade A evidence supports the efficacy of MTOR inhibition with everolimus in pancreatic NETs. Although a significant proportion of patients experience disease stabilization, only a minority will show objective tumour responses. It has been proposed that genomic mutations resulting in activation of MTOR signalling could be used to predict sensitivity to everolimus...
2017: Anticancer Research
https://www.readbyqxmd.com/read/28164207/incremental-value-of-99m-tc-hynic-toc-spect-ct-over-whole-body-planar-scintigraphy-and-spect-in-patients-with-neuroendocrine-tumours
#9
Mate Trogrlic, Stanko Težak
AIM: The aim of this study was to evaluate the additional value of (99m)Tc-HYNIC-TOC SPECT/CT over planar whole-body (WB) scintigraphy and SPECT alone in the detection and accurate localisation of neuroendocrine tumour (NET) lesions. METHODS: This study included 65 patients with a definitive histological diagnosis of NET prior to scintigraphy. Planar WB scintigraphy, SPECT, and SPECT/CT images were acquired at 4 h post-administration of 670 MBq (99m)Tc-HYNIC-TOC...
February 6, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28161703/neuroendocrine-cancer-therapeutic-strategies-in-g3-cancers
#10
Anja Rinke, Thomas M Gress
BACKGROUND: According to the latest WHO classification, neuroendocrine neoplasm (NEN) G3 of the gastrointestinal tract is defined by a proliferation index Ki67 above 20%. Gastrointestinal neuroendocrine carcinoma (NEC) is a rare and highly aggressive malignancy and despite responsiveness to chemotherapy, overall survival is poor. In the last 3-4 years, the heterogeneity of the NEN G3 group has become evident. SUMMARY: In addition to the proliferative activity, the tumour differentiation seems to play a major role, further dividing the NEN G3 group into neuroendocrine tumour (NET) G3 and NEC...
February 4, 2017: Digestion
https://www.readbyqxmd.com/read/28155902/new-outlook-on-the-diagnosis-treatment-and-follow-up-of-childhood-onset-craniopharyngioma
#11
REVIEW
Hermann L Müller, Thomas E Merchant, Stephanie Puget, Juan-Pedro Martinez-Barbera
Childhood-onset craniopharyngiomas are rare embryonic tumours of low-grade histological malignancy. Novel insights into the molecular pathogenesis of human adamantinomatous craniopharyngioma have started to unveil the possibility of testing novel treatments targeting pathogenic pathways. Hypothalamic involvement and/or treatment-related lesions result in impaired physical and social functionality and in severe neuroendocrine sequelae. Quality of survival in patients with craniopharyngioma with hypothalamic involvement is impaired by severe obesity, physical fatigue and non-optimal psychosocial development...
February 3, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28155290/the-diagnosis-of-bilateral-primary-renal-paragangliomas-in-a-cat
#12
Ryan B Friedlein, Alain J Carter, Robert D Last, Sarah Clift
A 9-year-old sterilised female domestic short-hair cat was referred with a history of vomiting and anorexia of 3 months' duration. Biochemistry, full-blood counts, thoracic radiographs, feline pancreatic-specific lipase, abdominal ultrasonography and feline immunodeficiency virus/feline leukaemia virus (FIV/FeLV) SNAP tests had been performed. Mild hypochloraemia and moderate hypokalaemia were evident on initial presentation. Abdominal ultrasonography initially revealed unilateral renal nodules on the left side...
January 24, 2017: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/28152792/use-of-alkylating-chemotherapy-in-high-grade-neuroendocrine-tumours-evaluation-of-real-world-data
#13
Michael Susmoy Sanatani, Stephen Welch, Walter Ilarion Kocha, Sue Richter
: 78 Background: High-grade neuroendocrine tumours (NETs) are believed to have activity to certain alkylating agents, although data are scant. These regimens include streptozotocin (STZ) (used in combination with doxorubicin or 5-fluorouracil) and dacarbazine (DTIC). Current series report variable responses between 6 - 69%. Our objective was to evaluate our real world data to better understand treatment decision-making and clinical outcomes with alkylating agents in advanced high-grade NETs...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152543/asporin-is-a-stromally-expressed-marker-associated-with-prostate-cancer-progression
#14
Annie Rochette, Nadia Boufaied, Eleonora Scarlata, Lucie Hamel, Fadi Brimo, Hayley C Whitaker, Antonio Ramos-Montoya, David E Neal, Alice Dragomir, Armen Aprikian, Simone Chevalier, Axel A Thomson
BACKGROUND: Prostate cancer shows considerable heterogeneity in disease progression and we propose that markers expressed in tumour stroma may be reliable predictors of aggressive tumour subtypes. METHODS: We have used Kaplan-Meier, univariate and multivariate analysis to correlate the expression of Asporin (ASPN) mRNA and protein with prostate cancer progression in independent cohorts. We used immunohistochemistry and H scoring to document stromal localisation of ASPN in a tissue microarray and mouse prostate cancer model, and correlated expression with reactive stroma, defined using Masson Trichrome staining...
February 2, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28152531/chemotherapy-in-well-differentiated-pancreatic-neuroendocrine-tumours-with-ki-67-%C3%A2-10-is-there-a-more-effective-antitumor-regimen-a-retrospective-multicentric-study-of-the-french-group-of-endocrine-tumours-gte
#15
Guillaume Roquin, Eric Baudin, Catherine Lombard-Bohas, Guillaume Cadiot, Sophie Dominguez, Rosine Guimbaud, Patricia Niccoli, Jean-Louis Legoux, Emmanuel Mitry, Vincent Rohmer, Philippe Ruszniewski, Thomas Walter, Michel Ducreux, Anne Couvelard, Jean-Yves Scoazec, Aline Ramond-Roquin, François-Xavier Caroli-Bosc, Olivia Hentic
No abstract text is available yet for this article.
February 3, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28138688/twins-in-spirit-part-iv-177-lu-%C3%A2-high%C3%A2-affinity-dotatate-a-promising-new-tracer-for-peptide-receptor-radiotherapy
#16
Claudia Brogsitter, Holger Hartmann, Gerd Wunderlich, Margret Schottelius, Hans-Jürgen Wester, Jörg Kotzerke
AIM: Besides the use of somatostatin analogues, small molecules like sunitinib and everolimus as well as conventional chemotherapy, peptide receptor radiotherapy (PRRT) using radiolabelled somatostatin analogues has gained an important role in the treatment of inoperable, metastasized neuroendocrine tumours (NET). There are various radiotracers in use. Based on our experience with the PET tracer [(68)Ga]DOTA-3-iodo-Tyr(3)-octreotate ([(68)Ga]HA-DOTATATE), a DOTATATE derivative with an increased binding affinity to hsst5, the current retrospective analysis is exploring the therapeutic potential of [(177)Lu]HA-DOTATATE...
January 31, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28133226/-a-case-of-mixed-adenoneuroendocrine-carcinoma-manec-of-the-duodenum
#17
Yu Asakura, Takuro Yoshikawa, Hiroki Sakamoto, Takahisa Akashi, Yoshiyuki Owada, Tetsuya Ienaga, Yoshihiro Ikura, Yasuhiro Iwai
A 79-year-old man was admitted to our hospital because of a positive fecal occult blood test. Gastrointestinal endoscopy revealed a tumor in the duodenal bulb. Histologically, biopsy specimens indicated adenocarcinoma. The patient underwent distal gastrectomy. Histopathological examination showed a neuroendocrine carcinoma with an adenocarcinoma. According to the 2010WHO Classification of Tumours of the Digestive System, this case was diagnosed as mixed adenoneuroendocrine carcinoma(MANEC). There was no metastatic lesion in the resected lymph node...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28122378/sequential-everolimus-and-sunitinib-treatment-in-pancreatic-metastatic-well-differentiated-neuroendocrine-tumours-resistant-to-prior-treatments
#18
Anna Angelousi, Kimberly Kamp, Maria Kaltsatou, Dermot O'Toole, Gregory Kaltsas, Wouter de Herder
No abstract text is available yet for this article.
January 26, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28111117/177lu-dotatate-for-midgut-neuroendocrine-tumours
#19
Talha Khan Burki
No abstract text is available yet for this article.
January 19, 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28111046/validation-and-comparison-between-current-prognostication-systems-for-pancreatic-neuroendocrine-neoplasms-a%C3%A2-single-institution-experience-with-176-patients
#20
Roxanne Teo, Brian K P Goh, David W M Tai, John C Allen, Tony K H Lim, Jacqueline S G Hwang, Damien M Tan, Ser-Yee Lee, Chung-Yip Chan, Peng-Chung Cheow, Pierce K H Chow, London L P J Ooi, Alexander Y F Chung, Simon Ong
BACKGROUND: This article aims to validate and compare the performance of 6 prognostication systems-the World Health Organization 2010 grading criteria, the European Neuroendocrine Tumour Society and the American Joint Committee for Cancer staging systems, the Memorial Sloan Kettering Cancer Center staging and grading systems, as well as the Bilimoria criteria in a cohort of patients with pancreatic neuroendocrine neoplasms at a single institution. METHODS: A retrospective review of 176 patients with histologically proven pancreatic neuroendocrine neoplasm was performed...
January 19, 2017: Surgery
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