keyword
MENU ▼
Read by QxMD icon Read
search

Pancreatic neuroendocrin neoplasm

keyword
https://www.readbyqxmd.com/read/28547985/renal-cell-carcinoma-metastasizing-to-pancreatic-neuroendocrine-neoplasm-the-second-case-described-in-the-world-literature
#1
Katarzyna Bednarek-Rajewska, Przemysław Zalewski, Danuta Bręborowicz, Aldona Woźniak
Tumor-to-tumor metastases are very rare events. We report a case of a 64-year-old man who presented with a tumor of the pancreas. The patient underwent partial pancreatectomy. Frozen section diagnosis of the tumor was an endocrine neoplasm. Paraffin block slide examination revealed a tumor consisting of two components: pancreatic endocrine neoplasm at the periphery of the tumor and the central part composed of clear cells with delicate vessels. The results of immunohistochemical stains revealed renal cell carcinoma surrounded by pancreatic endocrine neoplasm, therefore representing an unusual case of renal cell carcinoma metastasizing to a pancreatic endocrine neoplasm...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28540973/pancreatic-neuroendocrine-neoplasms-management-guidelines-recommended-by-the-polish-network-of-neuroendocrine-tumours
#2
Beata Kos-Kudła, Violetta Rosiek, Małgorzata Borowska, Agata Bałdys-Waligórska, Tomasz Bednarczuk, Jolanta Blicharz-Dorniak, Marek Bolanowski, Agnieszka Boratyn-Nowicka, Andrzej Cichocki, Jarosław B Ćwikła, Massimo Falconi, Wanda Foltyn, Foltyn Handkiewicz-Junak, Alicja Hubalewska-Dydejczyk, Barbara Jarząb, Michał Jarząb, Roman Junik, Dariusz Kajdaniuk, Grzegorz Kamiński, Agnieszka Kolasińska-Ćwikła, Aldona Kowalska, Robert Król, Leszek Królicki, Jolanta Kunikowska, Katarzyna Kuśnierz, Paweł Lampe, Dariusz Lange, Anna Lewczuk-Myślicka, Andrzej Lewiński, Michał Lipiński, Magdalena Londzin-Olesik, Bogdan Marek, Anna Nasierowska-Guttmejer, Ewa Nowakowska-Duława, Joanna Pilch-Kowalczyk, Marek Ruchała, Lucyna Siemińska, Anna Sowa-Staszczak, Teresa Starzyńska, Katarzyna Steinhof-Radwańska, Janusz Strzelczyk, Krzysztof Sworczak, Anhelli Syrenicz, Andrzej Szawłowski, Marek Szczepkowski, Ewa Wachuła, Wojciech Zajęcki, Anna Zemczak, Wojciech Zgliczyński
This article presents updated diagnostic and therapeutic guidelines for the management of pancreatic neuroendocrine tumours (PNEN), proposed by the Polish Network of Neuroendocrine Tumours. The guidelines contain new data received in the years 2013-2016, which confirm previous recommendations, and have led to modification of previous guidelines or have resulted in the formulation of new guidelines. Biochemical and imaging (anatomical and functional) tests are of great importance in diagnostics, as well as histopathological diagnosis to determine the management of PNEN patients, but they must be confirmed by an immunohistochemical examination...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28535439/critical-focus-on-mechanisms-of-resistance-and-toxicity-of-m-tor-inhibitors-in-pancreatic-neuroendocrine-tumors
#3
REVIEW
L Antonuzzo, M Del Re, V Barucca, F Spada, G Meoni, G Restante, R Danesi, F Di Costanzo, N Fazio
Pancreatic neuroendocrine tumors (pNETs) are rare neoplasms representing less than 2% of all pancreatic malignancies. The PI3K-AKT-mTOR pathway is often deregulated in pNETs and seems to play a key role in tumorigenesis. Everolimus, an inhibitor of the mTOR pathway, has demonstrated efficacy in the treatment of pNETs. Nevertheless de novo or acquired drug resistance is responsible for disease progression and represents a major obstacle to overcome by clinicians. Blocking the PI3K/AKT/mTOR pathway may cover the supposed main mechanisms of resistance to everolimus...
May 11, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28521422/clinical-outcomes-and-prognostic-factors-of-resected-pancreatic-neuroendocrine-neoplasms-a-single-center-experience-in-china
#4
Kaizhou Jin, Guopei Luo, Jin Xu, Bo Zhang, Chen Liu, Shunrong Ji, Liang Liu, Jiang Long, Quanxing Ni, Xianjun Yu
The aim of the present study was to investigate the clinical, pathological and prognostic characteristics of Chinese patients with resected pancreatic neuroendocrine neoplasms (p-NENs). Data from patients who were surgically treated and pathologically diagnosed with p-NENs at the Department of Pancreatic Oncology of the Fudan University Shanghai Cancer Center (Shanghai, China), between January 2003 and July 2015, were evaluated using univariate and multivariate analyses. A total of 162 patients with p-NENs met the criteria of the present study and were included in the analysis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28510792/a-systematic-review-of-proinsulin-secreting-pancreatic-neuroendocrine-tumors
#5
Timothy D Murtha, Beatrice C Lupsa, Sachin Majumdar, Dhanpat Jain, Ronald R Salem
BACKGROUND: Pancreatic neuroendocrine tumors (PNETs) are a heterogeneous group of islet cell-derived neoplasms with a propensity toward hormone production. Among PNETs, proinsulin-secreting tumors (proinsulinomas) are exceedingly rare. The objective of this study is to collect and summarize the existing literature to provide a comprehensive evaluation of this uncommon disease. METHODS: A systematic review was performed to characterize the clinicopathologic features of proinsulinoma...
May 16, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28507564/management-of-the-hormonal-syndrome-of-neuroendocrine-tumors
#6
Paweł Gut, Joanna Waligórska-Stachura, Agata Czarnywojtek, Nadia Sawicka-Gutaj, Maciej Bączyk, Katarzyna Ziemnicka, Jakub Fischbach, Kosma Woliński, Jarosław Kaznowski, Elżbieta Wrotkowska, Marek Ruchała
Gastroenteropancreatic neuroendocrine tumors (GEP/NET) are unusual and rare neoplasms that present many clinical challenges. They characteristically synthesize store and secrete a variety of peptides and neuroamines which can lead to the development of distinct clinical syndrome, however many are clinically silent until late presentation with mass effects. Management strategies include surgery cure and cytoreduction with the use of somatostatin analogues. Somatostatin have a broad range of biological actions that include inhibition of exocrine and endocrine secretions, gut motility, cell proliferation, cell survival and angiogenesis...
April 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28501118/impact-of-chromogranin-a-differentiation-and-mitoses-in-nonfunctional-pancreatic-neuroendocrine-tumors-%C3%A2-2%C3%A2-cm
#7
Katelin A Mirkin, Christopher S Hollenbeak, Joyce Wong
BACKGROUND: Small pancreatic neuroendocrine tumors (PNETs) are a unique subset of pancreatic neoplasms. Chromogranin A (CgA) levels, mitotic rate, and histologic differentiation are often used to characterize PNET behavior. This study evaluates the impact of these factors on survival in patients with PNETs. METHODS: The US National Cancer Data Base (1998-2012) was reviewed for patients with stages I-III, nonfunctional PNETs ≤2 cm. Clinicopathologic characteristics were collected, and univariate and multivariate survival analyses were performed...
May 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28498280/immunohistochemical-characterization-of-the-origins-of-metastatic-well-differentiated-neuroendocrine-tumors-to-the-liver
#8
Zhaohai Yang, David S Klimstra, Ralph H Hruban, Laura H Tang
Metastatic neoplasms of unknown primary site pose a major challenge to patient management. As targeted therapies are now being tailored to neuroendocrine tumors (NETs) of different primary sites, identifying the origin of metastatic NETs has become increasingly important. Compared with more extensive efforts on metastatic adenocarcinomas of unknown primary, the literature on metastatic NETs (often to the liver) is relatively sparse and most studies are based on primary tumors. We sought to study metastatic well-differentiated NETs to the liver to identify markers that predict the site of origin...
May 11, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28479381/integrated-clinicopathological-features-and-gene-microarray-analysis-of-pancreatic-neuroendocrine-tumors
#9
Huaqiang Zhou, Qinchang Chen, Wulin Tan, Zeting Qiu, Si Li, Yiyan Song, Shaowei Gao
Pancreatic neuroendocrine tumors are relatively rare pancreatic neoplasms over the world. Investigations about molecular biology of PNETs are insufficient for nowadays. We aimed to explore the expression of messenger RNA and regulatory processes underlying pancreatic neuroendocrine tumors from different views. The expression profile of GSE73338 were downloaded, including samples with pancreatic neuroendocrine tumors. First, the Limma package was utilized to distinguish the differentially expressed messenger RNA...
May 4, 2017: Gene
https://www.readbyqxmd.com/read/28464920/collision-of-ductal-adenocarcinoma-and-neuroendocrine-tumor-of-the-pancreas-a-case-report-and-review-of-the-literature
#10
Simone Serafini, Gianfranco Da Dalt, Gioia Pozza, Stella Blandamura, Michele Valmasoni, Stefano Merigliano, Cosimo Sperti
BACKGROUND: Simultaneous occurrence of exocrine and neuroendocrine tumors of the pancreas is very infrequent. We report a patient with an endocrine tumor in the pancreatic-duodenal area and extensive exocrine carcinoma involving the whole pancreas. CASE PRESENTATION: A 69-year-old woman was hospitalized in May 2016 for epigastric pain and weight loss. Her past medical history revealed an undefined main pancreatic duct dilation that was subsequently confirmed at CT scan (23 mm) and endoscopic ultrasound...
May 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28455360/rb-loss-and-kras-mutation-are-predictors-of-the-response-to-platinum-based-chemotherapy-in-pancreatic-neuroendocrine-neoplasm-with-grade-3-a-japanese-multicenter-pancreatic-nen-g3-study
#11
Susumu Hijioka, Waki Hosoda, Keitaro Matsuo, Makoto Ueno, Masayuki Furukawa, Hideyuki Yoshitomi, Noritoshi Kobayashi, Masafumi Ikeda, Tetsuhide Ito, Shoji Nakamori, Hiroshi Ishii, Yuzo Kodama, Chigusa Morizane, Takuji Okusaka, Hiroaki Yanagimoto, Kenji Notohara, Hiroki Taguchi, Masayuki Kitano, Kei Yane, Hiroyuki Maguchi, Yoshiaki Tsuchiya, Izumi Komoto, Hiroki Tanaka, Akihito Tsuji, Syunpei Hashigo, Yoshiaki Kawaguchi, Tetsuya Mine, Atsushi Kanno, Go Murohisa, Katsuyuki Miyabe, Tadayuki Takagi, Nobutaka Matayoshi, Tsukasa Yoshida, Kazuo Hara, Masayuki Imamura, Junji Furuse, Yasushi Yatabe, Nobumasa Mizuno
<p>Patients with Pancreatic neuroendocrine neoplasm grade-3 (PanNEN-G3) show variable responses to platinum-based chemotherapy. Recent studies indicated that PanNEN-G3 includes well-differentiated neuroendocrine tumor with G3 (NET-G3). Here, we examined the clinicopathological and molecular features of PanNEN-G3 and assessed the responsiveness to chemotherapy and survival.</p> Experimental Design: 100 patients with PanNEN-G3 were collected from 31 institutions, and after central review characteristics of each histological subtype (NET-G3 versus pancreatic neuroendocrine carcinoma (NEC-G3)) were analyzed, including clinical, radiological, and molecular features...
April 28, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28454229/somatostatin-receptor-expression-indicates-improved-prognosis-in-gastroenteropancreatic-neuroendocrine-neoplasm-and-octreotide-long-acting-release-is-effective-and-safe-in-chinese-patients-with-advanced-gastroenteropancreatic-neuroendocrine-tumors
#12
Yuhong Wang, Wei Wang, Kaizhou Jin, Cheng Fang, Yuan Lin, Ling Xue, Shiting Feng, Zhiwei Zhou, Chenghao Shao, Minhu Chen, Xianjun Yu, Jie Chen
Gastroenteropancreatic neuroendocrine neoplasm (GEP-NEN) is known to overexpress somatostatin receptors (SSTRs), most commonly SSTR2 and SSTR5. The expression of SSTRs on tumor cells forms the basis for somatostatin analog treatment of patients with NEN. The present study detected the expression of SSTR2 and SSTR5 in GEP-NEN and investigated the efficacy and safety of octreotide long-acting release (LAR) in the treatment of advanced gastroenteropancreatic neuroendocrine tumors (GEP-NET) in China. The present study reported that functionality of the pancreas, G1 and G2 grading, NET classification and Tumor-Node-Metastasis stages I and II were associated with higher SSTR2 positive expression...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28422824/pancreatic-carcinoids-serotonin-producing-pancreatic-neuroendocrine-neoplasms-report-of-5-cases-and-review-of-the-literature
#13
REVIEW
Nikolaos Tsoukalas, Eleftherios Chatzellis, Dimitra Rontogianni, Krystallenia I Alexandraki, Georgios Boutzios, Anna Angelousi, Gregory Kaltsas
INTRODUCTION: Pancreatic neuroendocrine neoplasms (pNENs) are relatively rare tumors representing 1% to 2% of all pancreatic neoplasms. These tumors can secrete a variety of biologically active substances giving rise to distinct clinical symptoms or can be clinically nonfunctioning. Apart from insulinomas and gastrinomas, which constitute the majority of functioning pNENs, some tumors may secrete serotonin presenting with the features of the carcinoid syndrome. These so-called pancreatic carcinoids are considered relatively rare tumors and are associated with increased urinary levels of 5-hydroxyindoleacetic acid (5-HIAA)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421458/surgical-management-of-pancreatic-cysts-a-shifting-paradigm-toward-selective-resection
#14
REVIEW
Jon M Gerry, George A Poultsides
Due to the widespread use of high-quality cross-sectional imaging, pancreatic cystic neoplasms are being diagnosed with increasing frequency. Clinicians are therefore asked to counsel a growing number of patients with pancreatic cysts diagnosed incidentally at an early, asymptomatic stage. Over the last two decades, accumulating knowledge on the biologic behavior of these neoplasms along with improved diagnostics through imaging and endoscopic cyst fluid analysis have allowed for a selective therapeutic approach toward these neoplasms...
April 18, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28414996/a-case-of-multiple-synchronous-quadruple-cancers-of-the-stomach-sigmoid-colon-rectum-and-pancreas
#15
Atsushi Nanashima, Tetsuro Tominaga, Takashi Nonaka, Kouki Wakata, Masaki Kunizaki, Shuichi Tobinaga, Yorihisa Sumida, Shigekazu Hidaka, Naoe Kinoshita, Terumitsu Sawai, Takeshi Nagayasu
INTRODUCTION: Multiple primary neoplasms are relatively rare, but their incidence has increased because of aging and improvements in diagnostic imaging. PRESENTATION OF CASE: A 67-year-old man presented with epigastric pain. On upper gastrointestinal endoscopy, an ulcer was seen at the gastric angle, and biopsy showed moderately differentiated adenocarcinoma (AC). Colonoscopy demonstrated a 15-mm lesion in the sigmoid colon and a submucosal lesion in the lower rectum...
April 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28386018/panin-neuroendocrine-cells-promote-tumorigenesis-via-neuronal-cross-talk
#16
Smrita Sinha, Ya-Yuan Fu, Adrien Grimont, Maren Ketcham, Kelly Lafaro, Joseph A Saglimbeni, Gokce Askan, Jennifer M Bailey, Jerry P Melchor, Yi Zhong, Min Geol Joo, Olivera Grbovic-Huezo, In-Hong Yang, Olca Basturk, Lindsey Baker, Young Park, Robert C Kurtz, David Tuveson, Steven D Leach, Pankaj J Pasricha
Nerves are a notable feature of the tumor microenvironment in some epithelial tumors, but their role in the malignant progression of pancreatic ductal adenocarcinoma (PDAC) is uncertain. Here, we identify dense innervation in the microenvironment of precancerous pancreatic lesions, known as pancreatic intraepithelial neoplasms (PanIN), and describe a unique subpopulation of neuroendocrine PanIN cells that express the neuropeptide substance P (SP) receptor neurokinin 1-R (NK1-R). Using organoid culture, we demonstrated that sensory neurons promoted the proliferation of PanIN organoids via SP-NK1-R signaling and STAT3 activation...
April 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28385665/dictating-genomic-destiny-epigenetic-regulation-of-pancreatic-neuroendocrine-tumours
#17
REVIEW
Justin S Gundara, Karim Jamal, Tom Kurzawinski
Pancreatic neuroendocrine tumours are a diverse group of neoplasms with an increasingly well-defined genomic basis. Despite this, much of what drives this disease is still unknown and epigenetic influences represent the next tier of gene, and hence disease modifiers that are of unquestionable importance. Moreover, they are of arguably more significance than the genes themselves given their malleable nature and potential to be exploited for not only diagnosis and prognosis, but also therapy. This review summarises what is known regarding the key epigenetic modifiers of disease through the domains of diagnosis, prognosis and treatment...
April 4, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28377287/may-we-challenge-the-enets-guidelines-in-pancreatic-neuroendocrine-neoplasms-a-quiz-for-french-experts
#18
Bertrand Brieau, Romain Coriat
INTRODUCTION: Recent guidelines have been published by a consensus of international experts (2016 ENETS guidelines). Nevertheless, in case of pancreatic neuroendocrine neoplasms (panNEN) the ENETS guidelines fail to propose a unique strategy in some situations, due to the lack of high-level of evidence and the absence of formal agreement between the experts drawing up the guidelines. MATERIAL AND METHODS: A survey of 25 questions on panNEN was sent to 104 French experts challenging the guidelines...
March 18, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28357177/pancreatic-neuroendocrine-tumors
#19
REVIEW
Jian Sun
Pancreatic neuroendocrine neoplasms (pNENs) are a heterogeneous group of tumors including well differentiated pancreatic neuroendocrine tumors (pNETs) and neuroendocrine carcinomas (pNECs). The incidence of pNENs has increased over the past few decades. Although, the understanding and interest for this tumor have also increased significantly, the debate about classification and diagnosis continues. Although the primary treatment for pNENs is surgical resection, there is still a lack of effective therapeutic options for patients with advanced unresectable pNENs...
February 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28344687/disseminated-pancreatic-neuroendocrine-neoplasm-nen-with-an-uncommon-localisation-in-the-central-nervous-system-a-case-report
#20
Joanna Białkowska, Agnieszka Kolasińska-Ćwikła, Dorota Mroczkowska, Mariusz Sowa, Łukasz Grabarczyk, Wojciech Maksymowicz, Andrzej Cichocki, Jarosław B Ćwikła
BACKGROUND: Neuroendocrine neoplasms (NEN) are rare neoplasms that originate from neuroendocrine cells and are characterized by the potential of hormonal activity. Approximately 70% of these tumours are located in the gastrointestinal system (GI), followed by the bronchi, endocrine glands-like C cells of the thyroid (medullary carcinoma), the parasympathetic and sympathetic system (paragangliomas, pheochromocytoma) and other very rare locations. The prevalence of cerebral metastases in neuroendocrine tumours is estimated by various authors to be approximately 1...
2017: Polish Journal of Radiology
keyword
keyword
29075
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"