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https://www.readbyqxmd.com/read/28734480/an-unusual-cause-of-acute-liver-failure-tumour-infiltration-by-neuroendocrine-carcinoma
#1
Sara de Cima Iglesias, Lucía Viña Soria, Lorena Martín Iglesias, Iván Astola Hidalgo, Lucía López-Amor, Dolores Escudero Augusto
No abstract text is available yet for this article.
July 19, 2017: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/28731049/composite-hemangioendothelioma-with-neuroendocrine-marker-expression-an-aggressive-variant
#2
Kyle D Perry, Alyaa Al-Lbraheemi, Brian P Rubin, Jin Jen, Hongzheng Ren, Jin Sung Jang, Asha Nair, Jaime Davila, Stefan Pambuccian, Andrew Horvai, William Sukov, Henry D Tazelaar, Andrew L Folpe
Aberrant expression of neuroendocrine markers is extremely rare in endothelial neoplasms, with only a single report describing three cases. Although originally classified as conventional angiosarcoma, further assessment of these tumors revealed a strikingly composite morphology composed of retiform and epithelioid elements reminiscent of composite hemangioendothelioma, a rare subtype of hemangioendothelioma. To further investigate these findings, available materials from 11 morphologically distinctive endothelial tumors showing neuroendocrine marker expression were retrieved from our archives...
July 21, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28730354/early-recurrence-of-neuroendocrine-liver-metastasis-after-curative-hepatectomy-risk-factors-prognosis-and-treatment
#3
Xu-Feng Zhang, Eliza W Beal, Jeffery Chakedis, Yi Lv, Fabio Bagante, Luca Aldrighetti, George A Poultsides, Todd W Bauer, Ryan C Fields, Shishir Kumar Maithel, Hugo P Marques, Matthew Weiss, Timothy M Pawlik
BACKGROUND: Early tumor recurrence after curative resection typically indicates a poor prognosis. The objective of the current study was to investigate the risk factors, treatment, and prognosis of early recurrence of neuroendocrine tumor (NET) liver metastasis (NELM) after hepatic resection. METHODS: A total of 481 patients who underwent curative-intent resection for NELM were identified from a multi-institutional database. Data on clinicopathological characteristics, intraoperative details, and outcomes were documented...
July 20, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28729431/sandostatin-lar-therapy-differentially-alters-68-ga-dotatate-uptake-in-normal-tissues-compared-to-primary-tumors-and-metastatic-lesions
#4
Narjess Ayati, Sze Ting Lee, Seyed Rasoul Zakavi, Kunthi Pathmaraj, Loai Qatawneh, Aurora Poon, Andrew Scott
Synthetic somatostatin analogs have been posed as a potential source of error in somatostatin receptor imaging by interfering with tumor detection; however, experimental models and clinical studies have shown a complex mechanism of octreotide effect on tumors. This study aimed to assess whether (68)Ga-DOTATATE uptake differs before and after treatment with long-acting somatostatin analogs. Methods: Thirty patients with intermediate to well differentiated neuroendocrine tumors (NET) who underwent (68)Ga-DOTATATE Positron Emission Tomography/Computed Tomography (PET/CT) scanning before and after receiving long-acting repeatable (LAR) Sandostatin were included in the study...
July 20, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28728155/morphological-and-functional-imaging-for-detecting-and-assessing-the-resectability-of-neuroendocrine-liver-metastases
#5
Maxime Ronot, Ashley K Clift, Richard P Baum, Aviral Singh, Harshad R Kulkarni, Andrea Frilling, Valérie Vilgrain
No abstract text is available yet for this article.
July 21, 2017: Neuroendocrinology
https://www.readbyqxmd.com/read/28722702/radiofrequency-ablation-of-hepatic-tumor-subjective-assessment-of-the-perilesional-vascular-network-on-contrast-enhanced-computed-tomography-before-and-after-ablation-can-reliably-predict-the-risk-of-local-recurrence
#6
Sireesha Yedururi, Silanath Terpenning, Sanjay Gupta, Patricia Fox, Sooyoung Shin Martin, Claudius Conrad, Evelyne M Loyer
OBJECTIVE: To determine whether simple, subjective analysis of the perilesional vascular network can predict the risk of local recurrence after radiofrequency ablation (RFA) of liver malignancies on contrast-enhanced computed tomography (CECT). METHODS: Contrast-enhanced computed tomography's 103 patients (59 men and 44 women; mean age, 63 years (range, 31-84 years) with 134 lesions who underwent RFA between 2000 and 2010 were retrospectively analyzed. The primary tumors include colorectal carcinoma (58 patients), hepatocellular carcinoma (n = 13), breast carcinoma (n = 8), neuroendocrine tumor (n = 5), and others (n = 19)...
July 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28718084/pancreatic-neuroendocrine-tumor-producing-insulin-and-vasopressin
#7
Omalkhaire M Alshaikh, Ju-Yoon Yoon, Bryan A Chan, Monika K Krzyzanowska, Jagdish Butany, Sylvia L Asa, Shereen Ezzat
The objective of the study is to report a rare case of pancreatic neuroendocrine tumor (pNET) producing insulin and vasopressin. We describe the clinical presentation and management of a metastatic pNET with refractory hypoglycemia and progressive severe hyponatremia. A 52-year-old patient had abdominal pain leading to the diagnosis of a tumor that was initially presumed to be splenic in origin. Investigations ultimately identified a pancreatic mass that on biopsy proved to be a pNET. Eventually, he developed extensive liver metastases, and with tumor progression, he manifested hypoglycemia and severe hyponatremia...
July 17, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28715719/isolated-caudate-lobectomy-left-sided-approach-case-reports
#8
Orlando Jorge M Torres, Rodrigo Rodrigues Vasques, Ozimo Pereira Gama-Filho, Miguel Eugenio L Castelo-Branco, Camila Cristina S Torres
INTRODUCTION: The caudate lobe is a distinct liver lobe and surgical resection requires expertise and precise anatomic knowledge. Left-sided approach was described for resection of small tumors originated in the Spiegel lobe but now the procedure has been performed even for tumors more than five centimeters. The aim of this study is to present three cases of tumor of caudate lobe underwent isolated lobectomy by left-sided approach. PRESENTATION OF CASE: Three patients with metastasis of colorectal cancer, carcinoma hepatocellular and metastasis of neuroendocrine tumor underwent resection...
July 4, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28706137/assessment-of-pancreatic-neuroendocrine-tumor-cytologic-genotype-diversity-to-guide-personalized-medicine-using-a-custom-gastroenteropancreatic-next-generation-sequencing-panel
#9
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...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28705916/biodistribution-and-dosimetry-of-18-f-meta-fluorobenzyl-guanidine-mfbg-a-first-in-human-pet-ct-imaging-study-of-patients-with-neuroendocrine-malignancies
#10
Neeta Pandit-Taskar, Pat B Zanzonico, Kevin D Staton, Jorge A Carrasquillo, Diane Reidy-Lagunes, Serge K Lyashchenko, Eva Burnazi, Hanwen Zhang, Jason S Lewis, Ronald Blasberg, Steven M Larson, Wolfgang Andreas Weber, Shakeel Modak
Introduction: Iodine-123-meta-iodobenzylguanidine ((123)I-MIBG) imaging is currently a mainstay in the evaluation of many neuroendocrine tumors, especially neuroblastoma. (123)I-MIBG imaging has several limitations that can be overcome by the use of a PET agent. (18)F-MFBG is a positron emission tomography (PET) analog of MIBG that may allow for single-day, high-resolution quantitative imaging. We conducted a first-in-human study of (18)F-MFBG PET imaging to evaluate the safety, feasibility, pharmacokinetics, and dosimetry of (18)F-MFBG in neuroendocrine tumors (NETs)...
July 13, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28697189/gallium-68-dotatate-pet-ct-is-better-than-ct-in-the-management-of-somatostatin-expressing-tumors-first-experience-in-africa
#11
Ismaheel O Lawal, Kehinde O Ololade, Thabo Lengana, Florette Reyneke, Alfred O Ankrah, Thomas Ebenhan, Mariza Vorster, Mike M Sathekge
OBJECTIVE: In this study we aimed to present our experience on the use of Gallium-68-dotatate with positron emission tomography, computed tomography ((68) Ga-dotatate PET/CT) in the management of neuroendocrine tumors (NET) and other somatostatin expressing tumors. SUBJECTS AND METHODS: We retrospectively reviewed patients with histologically confirmed or biochemically suspected NET and other somatostatin expressing (SSTR) tumors imaged at our department with (68)Ga-dotatate PET/CT...
July 12, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28693204/treatment-of-a-mixed-acinar-endocrine-carcinoma-with-uptake-on-68-gallium-dotatoc-positron-emission-tomography-computed-tomography-a-case-report
#12
Anneleen De Both, Marc De Man, Roberto Troisi, Hans Van Vlierberghe, Anne Hoorens, Karen Geboes
The case of a 35-year old female patient with a diagnosis of metastatic mixed acinar-endocrine carcinoma (MAEC) is investigated in the present study. The patient was believed to have a well-differentiated neuroendocrine tumor (NET) with a high Ki-67 index and uptake on (68)Gallium-DOTATOC positron emission tomography-computed tomography for 9 years, and was treated accordingly. The patient had long lasting disease control by treatment with sunitinib, and a response was observed in numerous lesions with peptide receptor radionuclide therapy (PRRT)...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28689221/variable-refocusing-flip-angle-single-shot-fast-spin-echo-imaging-of-liver-lesions-increased-speed-and-lesion-contrast
#13
Robert M Hicks, Andreas M Loening, Michael A Ohliger, Shreyas S Vasanawala, Thomas A Hope
PURPOSE: To evaluate acquisition time and clinical image quality of a variable refocusing flip angle (vrf) single-shot fast spin echo (SSFSE) sequence in comparison with a conventional SSFSE sequence for imaging of liver lesions in patients undergoing whole-body PET/MRI for oncologic staging. METHODS: A vrfSSFSE sequence was acquired in 43 patients with known pancreatic neuroendocrine tumors undergoing (68)Ga-DOTA-TOC PET on a simultaneous time-of-flight 3.0T PET/MRI...
July 8, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28683830/primary-hepatic-neuroendocrine-tumors-multi-modal-imaging-features-with-pathological-correlations
#14
Kai Yang, Ying-Sheng Cheng, Ji-Jin Yang, Xu Jiang, Ji-Xiang Guo
BACKGROUND: Primary hepatic neuroendocrine carcinomas (PHNECs) are rare and asymptomatic, and are therefore difficult to distinguish radiologically from other liver carcinomas. In this study, we aimed to determine the computed tomography (CT), magnetic resonance imaging (MRI), and digital subtraction angiography (DSA) features of PHNECs. METHODS: A retrospective analysis of 11 patients with pathologically proven PHNECs was performed from January 2009 to September 2014...
July 6, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28677067/intra-arterial-therapy-of-neuroendocrine-tumour-liver-metastases-comparing-conventional-tace-drug-eluting-beads-tace-and-yttrium-90-radioembolisation-as-treatment-options-using-a-propensity-score-analysis-model
#15
Duc Do Minh, Julius Chapiro, Boris Gorodetski, Qiang Huang, Cuihong Liu, Susanne Smolka, Lynn Jeanette Savic, David Wainstejn, MingDe Lin, Todd Schlachter, Bernhard Gebauer, Jean-François Geschwind
OBJECTIVES: To compare efficacy, survival outcome and prognostic factors of conventional transarterial chemoembolisation (cTACE), drug-eluting beads TACE (DEB-TACE) and yttrium-90 radioembolisation (Y90) for the treatment of liver metastases from gastroenteropancreatic (GEP) neuroendocrine tumours (NELM). METHODS: This retrospective analysis included 192 patients (58.6 years mean age, 56% men) with NELM treated with cTACE (N = 122), DEB-TACE (N = 26) or Y90 (N = 44) between 2000 and 2014...
July 4, 2017: European Radiology
https://www.readbyqxmd.com/read/28676017/antipsychotic-drugs-from-receptor-binding-profiles-to-metabolic-side-effects
#16
Spyridon Siafis, Dimitrios Tzachanis, Myrto Samara, Georgios Papazisis
Antipsychotic-induced metabolic side effects are major concerns in psychopharmacology and clinical psychiatry. Their pathogenetic mechanisms are still not elucidated. Antipsychotic drugs seem to interfere with feeding behaviors and energy balance processes that control metabolic regulation. Reward and energy balance centers in central nervous system constitute the central level of metabolic regulation. The peripheral level consists of skeletal muscles, the liver, the pancreas, the adipose tissue and neuroendocrine connections...
June 30, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28674519/somatostatin-ires-cre-mice-between-knockout-and-wild-type
#17
Cécile Viollet, Axelle Simon, Virginie Tolle, Alexandra Labarthe, Dominique Grouselle, Yann Loe-Mie, Michel Simonneau, Guillaume Martel, Jacques Epelbaum
The neuropeptide somatostatin (SOM) is widely expressed in rodent brain and somatostatin-IRES-Cre (SOM-cre) mouse strains are increasingly used to unravel the physiology of SOM-containing neurons. However, while knock-in targeting strategy greatly improves Cre-Lox system accuracy, recent reports have shown that genomic insertion of Cre construct per se can markedly affect physiological function. We show that Cre transgene insertion into the 3'UTR of the somatostatin gene leads to the selective and massive depletion of endogenous SOM in all tested brain regions...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28673658/long-term-hepatotoxicity-of-yttrium-90-radioembolization-as-treatment-of-metastatic-neuroendocrine-tumor-to%C3%A2-the%C3%A2-liver
#18
Yu-Kai Su, Rosewell V Mackey, Ahsun Riaz, Vanessa L Gates, Al B Benson, Frank H Miller, Vahid Yaghmai, Ahmed Gabr, Riad Salem, Robert J Lewandowski
PURPOSE: To determine long-term hepatotoxicity of yttrium-90 ((90)Y) radioembolization in patients treated for metastatic neuroendocrine tumor (mNET) and evaluate if imaging and laboratory findings of cirrhosis-like morphology are associated with clinical symptoms. MATERIALS AND METHODS: Retrospective review from 2003 to 2016 was performed for patients with mNET treated with (90)Y glass microspheres. Fifty-four patients with > 2 year follow-up were stratified into unilobar (n = 15) vs whole-liver (n = 39) treatment...
June 30, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28671770/clinical-outcomes-of-patients-with-resectable-pancreatic-acinar-cell-carcinoma
#19
Seyoung Seo, Changhoon Yoo, Kyu-Pyo Kim, Baek-Yeol Ryoo, Heung-Moon Chang, Seung-Mo Hong, Jae Hoon Lee, Ki Byung Song, Dae Wook Hwang, Ki-Hun Kim, Shin Hwang, Song Cheol Kim
AIM: With rarity of disease, the post-resection clinical course of localized pancreatic acinar cell carcinoma (ACC) is largely unknown. Therefore, we analyzed the outcomes of patients with localized pancreatic ACCs who underwent surgical resection. METHODS: We retrospectively analyzed the outcomes of 20 patients with resectable pancreatic ACC who underwent surgery. RESULTS: Median age was 57 years and 16 were male. The ACCs were composed of 8 pure ACCs, 10 mixed acinar-neuroendocrine carcinomas, and 2 mixed acinar-ductal adenocarcinomas...
July 3, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28667452/role-of-contrast-enhanced-ultrasound-to-define-prognosis-and-predict-response-to-biotherapy-in-pancreatic-neuroendocrine-tumors
#20
M Del Prete, A Di Sarno, R Modica, F Lassandro, A Giorgio, A Bianco, M Muto, M Gasperi, F Del Prete, A Colao, V Montesarchio, A Faggiano
PURPOSE: The incidence of neuroendocrine tumors (NETs) is progressively increasing. Most cases arise from the digestive system, where ileum, rectum and pancreas represent the commonest site of origin. Liver metastases are frequently detected at diagnosis or during the follow-up. Contrast-enhanced ultrasound (CEUS) is used in patients with pancreatic NETs (P-NETs) and liver metastases from P-NET but its role has not been standardized. The aim of this retrospective study was to investigate CEUS in patients with P-NETs and liver metastases from P-NET both as prognostic factor and predictor of response to therapy with somatostatin analogues (SSAs)...
June 30, 2017: Journal of Endocrinological Investigation
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