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Neuroendocrine tumour

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https://www.readbyqxmd.com/read/28528509/invasive-lobular-carcinoma-with-extracellular-mucin-production-a-novel-pattern-of-lobular-carcinomas-of-the-breast-clinico-pathological-description-of-eight-cases
#1
Gábor Cserni, Giuseppe Floris, Nektarios Koufopoulos, Anikó Kovács, Afroditi Nonni, Peter Regitnig, Anders Stahls, Zsuzsanna Varga
Invasive lobular carcinoma of the breast is known to produce intracellular mucin and has been recognized in single-case reports to show extracellular mucin production, as well. This latter morphology is not only rare but must also be under- or misdiagnosed. The aim was to better characterize this entity. Cases of lobular cancers demonstrating extracellular mucin formation were identified in a multi-institutional effort and their clinical and morphologic features were assessed. Immunohistochemistry was used to characterize the E-cadherin-membrane complex, neuroendocrine differentiation, and to some extent, mucin formation...
May 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28523075/mouse-mammary-tumour-virus-mmtv-and-human-breast-cancer-with-neuroendocrine-differentiation
#2
Lawson Js, Ngan Cc, Glenn Wk, Tran Dd
BACKGROUND: Mouse mammary tumour viruses (MMTVs) may have a role in a subset of human breast cancers. MMTV positive human breast cancers have similar histological characteristics to neuroendocrine breast cancers and to MMTV positive mouse mammary tumours. The purpose of this study was to investigate the expression of neuroendocrine biomarkers - synaptophysin and chromogranin, to determine if these histological characteristics and biomarker expression were due to the influences of MMTV...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28521033/lymph-node-metastases-in-thymic-malignancies-a-chinese-alliance-for-research-in-thymomas-retrospective-database-analysis%C3%A2
#3
Zhitao Gu, Yucheng Wei, Jianhua Fu, Lijie Tan, Peng Zhang, Yongtao Han, Chun Chen, Renquan Zhang, Yin Li, Keneng Chen, Hezhong Chen, Yongyu Liu, Youbing Cui, Yun Wang, Liewen Pang, Zhentao Yu, Xinming Zhou, Yangchun Liu, Yi Shen, Wentao Fang
OBJECTIVES: Lymphatic involvement is believed to be relatively rare in thymic epithelial tumours. The incidence and prognostic significance of nodal metastases are still unclear. The goal of this study was to define the incidence and prognostic relevance of nodal metastasis in patients with thymic epithelial tumours, using a nationwide retrospective database of the Chinese Alliance for Research in Thymomas. METHODS: Patients who underwent upfront surgical resection without preoperative therapy were enrolled for the study...
May 18, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28502684/metastatic-neuroendocrine-carcinoma-of-unknown-origin-arising-in-the-femoral-nerve-sheath
#4
Nicholas Candy, Adam Young, Kieren Allinson, Oliver Carr, Jason McMillen, Rikin Trivedi
Metastatic neuroendocrine carcinoma of unknown origin is a rare condition, usually presenting with lesions in the liver and/or lung. We present the first reported case of a metastatic neuroendocrine carcinoma of unknown origin arising in the femoral nerve sheath. MRI demonstrated what was thought to be a schwannoma in the left femoral nerve sheath in the proximal femoral triangle, immediately inferior to the anterior inferior iliac spine. At the time of operation, the tumour capsule was invading surrounding tissue as well as three trunks of the femoral nerve...
May 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28501762/poorly-differentiated-gastro-entero-pancreatic-neuroendocrine-carcinomas-are-they-really-heterogeneous-insights-from-the-ffcd-gte-national-cohort
#5
T Walter, D Tougeron, E Baudin, K Le Malicot, T Lecomte, D Malka, O Hentic, S Manfredi, I Bonnet, R Guimbaud, R Coriat, C Lepère, C Desauw, A Thirot-Bidault, L Dahan, G Roquin, T Aparicio, J-L Legoux, C Lombard-Bohas, J-Y Scoazec, C Lepage, G Cadiot
BACKGROUND: Diagnosis and management of poorly differentiated gastro-entero-pancreatic (GEP) neuroendocrine carcinomas (NECs) remain challenging. Recent studies suggest prognostic heterogeneity. We designed within the French Group of Endocrine Tumours a prospective cohort to gain insight in the prognostic stratification and treatment of GEP-NEC. PATIENTS AND METHODS: All patients with a diagnosis of GEP-NEC between 1st January 2010 and 31st December 2013 could be included in this national cohort...
May 11, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28489825/intratumoural-heterogeneity-generated-by-notch-signalling-promotes-small-cell-lung-cancer
#6
Jing Shan Lim, Alvaro Ibaseta, Marcus M Fischer, Belinda Cancilla, Gilbert O'Young, Sandra Cristea, Vincent C Luca, Dian Yang, Nadine S Jahchan, Cécile Hamard, Martine Antoine, Marie Wislez, Christina Kong, Jennifer Cain, Yu-Wang Liu, Ann M Kapoun, K Christopher Garcia, Timothy Hoey, Christopher L Murriel, Julien Sage
The Notch signalling pathway mediates cell fate decisions and is tumour suppressive or oncogenic depending on the context. During lung development, Notch pathway activation inhibits the differentiation of precursor cells to a neuroendocrine fate. In small-cell lung cancer, an aggressive neuroendocrine lung cancer, loss-of-function mutations in NOTCH genes and the inhibitory effects of ectopic Notch activation indicate that Notch signalling is tumour suppressive. Here we show that Notch signalling can be both tumour suppressive and pro-tumorigenic in small-cell lung cancer...
May 10, 2017: Nature
https://www.readbyqxmd.com/read/28484583/small-cell-carcinoma-of-the-vulva-case-report
#7
Ana Correia, Elizabeth Castelo Branco, Paulo Correia, Marcos Guimarães, Luís Sá
Neuroendocrine tumours are rare in the gynaecologic tract, comprising approximately 2% of all gynaecological tumours. They have an aggressive behaviour and are a diagnostic and clinical challenge, due to their rarity and the lack of standardized therapeutic approaches. There are a few case reports. It is defined as a high-grade carcinoma exhibiting neuroendocrine differentiation. The authors describe the case of a 70-year-old woman, with vulvar neuroendocrine small cell carcinoma after superficial vulvectomy...
April 6, 2017: Clinics and Practice
https://www.readbyqxmd.com/read/28471845/early-efficacy-of-and-toxicity-from-lutetium-177-dotatate-treatment-in-patients-with-progressive-metastatic-net
#8
Deborah Pencharz, Martin Walker, Mehmet Yalchin, Ann-Marie Quigley, Martyn Caplin, Christos Toumpanakis, Shaunak Navalkissoor
OBJECTIVE: Lutetium-177 DOTA-D-Phe1-Tyr3-octreotide (Lu-DOTATATE) is a treatment option for patients with well-differentiated metastatic neuroendocrine tumours. Our centre started administering this therapy in 2012. The aim of this study was therefore to analyse the first cohort of patients treated with Lu-DOTATATE to determine its early efficacy and toxicity. PATIENTS AND METHODS: We retrospectively analysed patient, tumour and treatment characteristics, end-of-treatment outcome, time to progression and toxicity in 79 consecutive patients treated with Lu-DOTATATE who had progressive NET according to Response Evaluation Criteria in Solid Tumours criteria...
May 3, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28471419/mitochondrial-deficiencies-in-the-predisposition-to-paraganglioma
#9
REVIEW
Charlotte Lussey-Lepoutre, Alexandre Buffet, Anne-Paule Gimenez-Roqueplo, Judith Favier
Paragangliomas and pheochromocytomas are rare neuroendocrine tumours with a very strong genetic component. It is estimated that around 40% of all cases are caused by a germline mutation in one of the 13 predisposing genes identified so far. Half of these inherited cases are intriguingly caused by mutations in genes encoding tricarboxylic acid enzymes, namely SDHA, SDHB, SDHC, SDHD, and SDHAF2 genes, encoding succinate dehydrogenase and its assembly protein, FH encoding fumarate hydratase, and MDH2 encoding malate dehydrogenase...
May 4, 2017: Metabolites
https://www.readbyqxmd.com/read/28464233/incidence-and-prognostic-value-of-serotonin-secretion-in-pancreatic-neuroendocrine-tumours
#10
Wouter T Zandee, Roxanne C S van Adrichem, Kimberly Kamp, Richard A Feelders, Marie-Louise F van Velthuysen, Wouter W de Herder
BACKGROUND: Serotonin secretion occurs in approximately 1-4% of patients with a pancreatic neuroendocrine tumour (PNET), but the incidence is not well defined. The aim of this study is to determine the incidence of serotonin secretion with and without carcinoid syndrome, and the prognostic value for overall survival (OS). METHODS: Data were collected from 255 patients with a PNET if 24-hour urinary 5-hydroxyindoleacitic acid excretion (5-HIAA) was assessed. Patients were diagnosed with serotonin secretion if 24-hour urinary 5-HIAA excretion was more than 3x the upper limit of normal (ULN) of 50 μmol/24 hours during follow-up...
May 2, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28463674/a-rare-type-of-colorectal-cancer-mixed-adeno-neuroendocrine-carcinoma-manec
#11
Floryn Cherbanyk, Jean Loup Gassend, Maria Dimitrief, Snezana Andrejevic-Blant, Olivier Martinet, Edgardo Pezzetta
The aim of this paper is to report the clinicopathological data of one case of mixed metastatic adenoneuroendocrine carcinoma (MANEC) in the caecum; less than ten cases of which have been described in the English literature. A 57-year-old male patient presented with a mixed adenoneuroendocrine carcinoma (MANEC) of the caecum with liver metastasis and peritoneal carcinomatosis. An emergency right hemicolectomy and omentectomy were performed, followed by several cycles of unsuccessful palliative chemotherapy...
March 2017: Chirurgia
https://www.readbyqxmd.com/read/28459956/adjuvant-chemotherapy-for-large-cell-neuroendocrine-lung-carcinoma-results-from-the-european-society-for-thoracic-surgeons-lung-neuroendocrine-tumours-retrospective-database
#12
Pier Luigi Filosso, Francesco Guerrera, Andrea Evangelista, Claudia Galassi, Stefan Welter, Erino Angelo Rendina, William Travis, Eric Lim, Inderpal Sarkaria, Pascal Alexandre Thomas
OBJECTIVES: Large-cell neuroendocrine carcinoma (LCNC) is a rare tumour characterized by aggressive biological behaviour and poor prognosis. Due to its rarity and the lack of randomized clinical trials, the best treatment is still under debate. Some recent reports indicate that adjuvant chemotherapy (CT) may have a beneficial effect on survival. Our goal was to evaluate this finding using a large series of patients with neuroendocrine tumours obtained from the European Society of Thoracic Surgeons database...
April 28, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28458908/endoscopic-ultrasound-guided-ethanol-ablation-therapy-for-pancreatic-insulinoma-an-unusual-strategy
#13
Adriana de Sousa Lages, Isabel Paiva, Patrícia Oliveira, Francisco Portela, Francisco Carrilho
SUMMARY: Insulinomas are the most frequent cause of hyperinsulinaemic hypoglycaemia. Although surgical enucleation is the standard treatment, a few other options are available to high-risk patients who are elderly or present with co-morbidities. We present a case report of an 89-year-old female patient who was admitted to the emergency department due to recurrent hypoglycaemia, especially during fasting. Laboratory work-up raised the suspicion of hyperinsulinaemic hypoglycaemia, and abdominal CT scan revealed a 12 mm nodular hypervascular lesion of the pancreatic body suggestive of neuroendocrine tumour...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28458874/synchronous-small-cell-carcinoma-and-adenocarcinoma-of-the-rectum
#14
Pyong Wha Choi
Small cell carcinoma (SCC) is derived from neuroendocrine cells primarily found in the lung. Extra-pulmonary SCC is relatively rare, comprising <5% of all SCCs. Most extra-pulmonary SCCs are found in the gastrointestinal tract; however, SCC of the rectum is extremely rare. The tumour biology of rectal SCC is similar to that of pulmonary SCC, an aggressive tumour that results in frequent distant metastases associated with poor response to chemotherapy. Combination chemotherapy, based on regimens for pulmonary SCC, has been used to treat extra-pulmonary SCC, and surgical resection followed by radiation therapy has been suggested; however, an optimal treatment modality has not been established due to the rarity of these cases...
April 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28451462/pulmonary-adenocarcinoma-with-mucin-production-modulates-phenotype-according-to-common-genetic-traits-a-reappraisal-of-mucinous-adenocarcinoma-and-colloid-adenocarcinoma
#15
Angelica Sonzogni, Fabrizio Bianchi, Alessandra Fabbri, Mara Cossa, Giulio Rossi, Alberto Cavazza, Elena Tamborini, Federica Perrone, Adele Busico, Iolanda Capone, Benedetta Picciani, Barbara Valeri, Ugo Pastorino, Giuseppe Pelosi
Whether invasive mucinous adenocarcinoma (IMA) and colloid adenocarcinoma (ICA) of the lung represent separate tumour entities, or simply lie within a spectrum of phenotypic variability, is worth investigating. Fifteen ICA, 12 IMA, 9 ALK-rearranged adenocarcinomas (ALKA), 8 non-mucinous KRAS-mutated adenocarcinomas (KRASA) and 9 mucinous breast adenocarcinomas (MBA) were assessed by immunohistochemistry for alveolar (TTF1, cytoplasmic MUC1), intestinal (CDX-2, MUC2), gastric (membrane MUC1, MUC6), bronchial (MUC5AC), mesenchymal (vimentin), neuroendocrine (chromogranin A, synaptophysin), sex steroid hormone-related (oestrogen and progesterone receptors), pan-mucinous (HNF4A) and pan-epithelial (keratin 7) lineage biomarkers and by targeted next generation sequencing (TNGS) for 50 recurrently altered cancer genes...
April 2017: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/28446479/severe-chronic-diarrhoea-secondary-to-primary-lymph-node-gastrinoma
#16
Mouhanna Abu Ghanimeh, Khalil Abuamr, Esmat Sadeddin, Osama Yousef
The existence of primary lymph node (LN) gastrinoma is questionable and controversial. In fact, the presence of gastrinoma in such uncommon site raises the possibility of metastasis from another occult primary site. An extensive evaluation and careful follow-up is always warranted. A female aged 48 years presented with chronic abdominal pain and watery diarrhoea. Her serum gastrin and chromogranin were elevated, and an underlying gastrinoma was suspected. Further evaluation with an octreotide scan, an endoscopic ultrasound and a secretin stimulation test confirmed the diagnosis...
April 26, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28439648/evaluation-of-68-ga-dotatoc-pet-mri-for-whole-body-staging-of-neuroendocrine-tumours-in-comparison-with-68-ga-dotatoc-pet-ct
#17
Lino M Sawicki, Cornelius Deuschl, Karsten Beiderwellen, Verena Ruhlmann, Thorsten D Poeppel, Philipp Heusch, Harald Lahner, Dagmar Führer, Andreas Bockisch, Ken Herrmann, Michael Forsting, Gerald Antoch, Lale Umutlu
OBJECTIVES: To compare the diagnostic performance of (68)Ga-DOTATOC PET/MRI and (68)Ga-DOTATOC PET/CT in the whole-body staging of patients with neuroendocrine tumours (NET). METHODS: Thirty patients with histopathologically confirmed NET underwent PET/CT and PET/MRI in a single-injection protocol. PET/CT and PET/MRI scans were prospectively evaluated with regard to lesion count, localization, nature (NET/non-NET), and conspicuity (four-point scale). Histopathology and follow-up imaging served as the reference standards...
April 24, 2017: European Radiology
https://www.readbyqxmd.com/read/28435454/dual-somatostatin-receptor-fdg-pet-ct-imaging-in-metastatic-neuroendocrine-tumours-proposal-for-a-novel-grading-scheme-with-prognostic-significance
#18
David Lh Chan, Nick Pavlakis, Geoffrey P Schembri, Elizabeth J Bernard, Edward Hsiao, Aimee Hayes, Tristan Barnes, Connie Diakos, Mustafa Khasraw, Jaswinder Samra, Enid Eslick, Paul J Roach, Alexander Engel, Stephen J Clarke, Dale L Bailey
Background: PET scans using FDG and somatostatin receptor imaging agents have both been used to study neuroendocrine tumours. Most reports have documented the sensitivity and specificity of each radiopharmaceutical independently, and even suggested the superiority of one over the other for different grades of disease. Aim: The aim of this work was to develop a grading scheme that describes the joint results of both the FDG and somatostatin receptor imaging PET scans in staging subjects with neuroendocrine tumours in a single combined parameter...
2017: Theranostics
https://www.readbyqxmd.com/read/28427516/prognostic-and-predictive-biomarkers-in-neuroendocrine-tumours
#19
REVIEW
David L Chan, Stephen J Clarke, Connie I Diakos, Paul J Roach, Dale L Bailey, Simron Singh, Nick Pavlakis
Neuroendocrine tumours are extremely heterogeneous malignancies. Despite marked heterogeneity in clinical course and prognosis, few biomarkers exist to help predict prognosis and guide treatment. Many tumour-based biomarkers (Ki-67, mitotic count, genetic/epigenetic changes and microRNAs) exist, but only Ki-67 and mitotic count have strong evidence to support their routine use. Blood-based markers are easily repeatable, but currently established biomarkers (chromogranin A and urinary 5-HIAA) are difficult to measure accurately in practice...
May 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28423380/a-systematic-review-of-symptoms-and-quality-of-life-issues-in-pancreatic-neuroendocrine-tumours
#20
Megan Topping, Debra Gray, Elizabeth Friend, Albert Davies, John Ramage
No abstract text is available yet for this article.
April 20, 2017: Neuroendocrinology
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