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Pancreatic neuroendocrin neoplasm

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https://www.readbyqxmd.com/read/28422824/pancreatic-carcinoids-serotonin-producing-pancreatic-neuroendocrine-neoplasms-report-of-5-cases-and-review-of-the-literature
#1
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
#2
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
#3
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
#4
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 6, 2017: Cancer Research
https://www.readbyqxmd.com/read/28385665/dictating-genomic-destiny-epigenetic-regulation-of-pancreatic-neuroendocrine-tumours
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28342127/robotic-single-site-plus-one-port-distal-pancreatectomy
#9
Sung Hyun Kim, Chang Moo Kang, Woo Jung Lee
Laparoscopic distal pancreatectomy is regarded as safe and effective surgical approach in benign and low-grade malignant tumor of the pancreas. With the advances of laparoscopic techniques and instruments, many efforts to reduce the number of the trocar site has been made. There are a few available surgical techniques of laparoscopic single-site (single port or reduced port) distal pancreatectomy, suggesting its safety and feasibility. However, it is true that laparoscopic single-site distal pancreatectomy is difficult and technically quite demanding...
March 24, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28338171/-advances-of-circulating-biomarkers-in-gastroenteropancreatic-neuroendocrine-neoplasms
#10
Luohai Chen, Minhu Chen, Jie Chen
Gastroenteropancreatic neuroendocrine neoplam (GEP-NEN) is a rare group of tumors with its incidence rising significantly in recent decades. Because of the late presentation of the disease and limitations in conventional biomarkers, about 50% of GEP-NEN patients manifests advanced disease when diagnosed. Therefore, it is vital to identify circulating biomarkers which can not only be used for early diagnosis but also accurately evaluating the biological behavior of GEP-NEN. This review summarizes the advances of circulating biomarkers in diagnosing and evaluating efficacy of treatment in GEP-NEN...
March 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28331340/pancreatic-neuroendocrine-neoplasms-at-magnetic-resonance-imaging-comparison-between-grade-3-and-grade-1-2-tumors
#11
Chuangen Guo, Xiao Chen, Wenbo Xiao, Qidong Wang, Ke Sun, Zhongqiu Wang
BACKGROUND: The grading of pancreatic neuroendocrine neoplasms (PanNENs) is associated with the choice of treatment strategy. The aim of this study is to identify the magnetic resonance imaging (MRI) features in differentiating pancreatic neuroendocrine tumors (PanNETs) grade 1/2 (G1/G2) and pancreatic neuroendocrine carcinoma grade 3 (PanNEC G3). PATIENTS AND METHODS: A total of 59 patients with histologically proven PanNENs and who underwent pretreatment MRI were retrospectively analyzed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28291009/a-family-with-von-hippel-lindau-syndrome-the-findings-of-indium-111-somatostatin-receptor-scintigraphy-iodine-123-metaiodobenzylguanidine-scintigraphy-and-single-photon-emission-computerized-tomography
#12
Pelin Arıcan, Berna Okudan Tekin, Seniha Naldöken, Rıza Şefizade, Dilek Berker
Von Hippel-Lindau syndrome (VHLS) is an autosomal dominant hereditary familial disorder characterized by development of malignant and benign neoplasms. Differential diagnosis of the adrenal and pancreatic masses are difficult in patients with VHLS. Iodine-123 metaiodobenzylguanidine (I-123 MIBG) and indium-111 somatostatin receptor scintigraphies (In-111 SRS) have important roles in the differential diagnosis of adrenal and pancreatic masses in those patients. In this case report, we present the findings of I-123 MIBG single-photon emission computerized tomography (SPECT/CT) and In-111 SRS SPECT/CT in three members of a family with VHLS...
February 5, 2017: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/28265400/laparoscopic-splenopancreatectomy-for-an-endocrine-tumor-with-cystic-changes-a-case-report
#13
Hideki Izumi, Naoki Yazawa, Daisuke Furukawa, Yoshihito Masuoka, Misuzu Yamada, Taro Mashiko, Yohei Kawashima, Masami Ogawa, Yoshiaki Kawaguchi, Tetsuya Mine, Kenichi Hirabayashi, Toshio Nakagohri
The biological behavior of a cystic pancreatic endocrine neoplasm is less aggressive than that of pancreatic neuroendocrine neoplasms, and its prognosis is better. Limited surgery should be considered for cystic pancreatic endocrine neoplasms that are not accompanied preoperatively by lymph node or distant metastasis.
March 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28256369/anti-hu-paraneoplastic-brainstem-encephalitis-caused-by-a-pancreatic-neuroendocrine-tumor-presenting-with-central-hypoventilation
#14
Marc Najjar, Andrew Taylor, Surbhi Agrawal, Tito Fojo, Alexander E Merkler, Marc K Rosenblum, Laura Lennihan, Michael D Kluger
Paraneoplastic neurological syndromes are rare autoimmune manifestations of malignancies associated with specific antibodies. Anti-Hu associated brainstem encephalitis, a well-described syndrome, usually presents subacutely with preferential involvement of the medulla. Anti-Hu antibodies target intraneuronal antigens and are therefore highly correlated with neurological syndromes when present concomitantly with a neoplasm. Reported is a case of anti-Hu brainstem encephalitis associated with a pancreatic neuroendocrine tumor (PNET) presenting with central hypoventilation...
February 27, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28254159/surveillance-strategy-for-small-asymptomatic-non-functional-pancreatic-neuroendocrine-tumors-a-systematic-review-and-meta-analysis
#15
REVIEW
Ville Sallinen, Tessa Y S Le Large, Shamil Galeev, Zahar Kovalenko, Elke Tieftrunk, Raphael Araujo, Güralp O Ceyhan, Sebastien Gaujoux
BACKGROUND: Non-functional pancreatic neuroendocrine tumors (NF-PNET) are rare neoplasms being increasingly diagnosed. Surgical treatment or expectant management are both suggested for small NF-PNETs. The aim of this study was to evaluate the outcome of surveillance strategy for small NF-PNETs. METHODS: A systematic search was performed up to March 2016 in MEDLINE, EMBASE and the Cochrane Library according to the PRISMA guidelines. Data was pooled using the random-effects model...
April 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
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
#16
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/28176217/can-mdct-or-eus-features-predict-the-histopathological-grading-scheme-of-pancreatic-neuroendocrine-neoplasms
#17
Hui Zhu, Lang Ying, Wei Tang, Xiujiang Yang, Bo Sun
PURPOSE: To identify whether the features of preoperative MDCT or EUS could predict the histopathological grading scheme of pancreatic neuroendocrine neoplasms (pNENs). METHODS: A total of 25 patients with pNENs were enrolled in the present study. The qualitative and quantitative variables were reviewed. The qualitative variables included location, contour, border, necrosis, intratumoral vessel, homogeneity, calcification, peripancreatic fat/vessel infiltration, pancreatic duct dilatation, mass within pancreas, lymphadenopathy and hepatic metastasis on MDCT and border, echogenicity, cystic/solid and blood flow on EUS...
February 7, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28162214/-the-role-of-hong-s-single-stitch-duct-to-mucosa-pancreaticojejunostomy-in-laparoscopic-pancreaticoduodenectomy
#18
D F Hong, Y H Liu, Y H Zhang, Y C Wang, Z M Wang, W D Wu, G L Shen, J G Zhang, W Zhang, J Cheng, S Y Peng
Objective: To investigate the role of "Hong's single-stitch duct to mucosa pancreaticojejunostomy(HSDMP)" in laparoscopic pancreaticoduodenectomy (LPD). Methods: The clinical data including perioperative and short-term outcomes of 51 cases of LPD with HSDMP which performed in Zhejiang Provincial People's Hospital(33 cases) and Frist Clinical Hospital of Jilin University(18 cases) between April and October 2016 were reviewed retrospectively. There were 31 male patients and 20 female patients. The mean age was(59±11)years...
February 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28146608/neuroendocrine-liver-metastasis-the-chance-to-be-cured-after-liver-surgery
#19
Fabio Bagante, Gaya Spolverato, Katiuscha Merath, Lauren McLendon Postlewait, George A Poultsides, Matthew G Mullen, Todd W Bauer, Ryan C Fields, Jorge Lamelas, Hugo P Marques, Luca Aldrighetti, Thuy Tran, Shishir K Maithel, Timothy M Pawlik
BACKGROUND AND OBJECTIVE: Neuroendocrine liver metastasis tumors (NELM) are a heterogeneous group of neoplasms with varied histologic features and a wide range of clinical behaviors. We aimed to identify the fraction of patients cured after liver surgery for NELM. METHODS: Cure fraction models were used to analyze 376 patients who underwent hepatectomy with curative intent for NELM. RESULTS: The median and 5-year disease-free survival (DFS) were 4...
February 1, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28127201/pancreatic-neuroendocrine-neoplasms-magnetic-resonance-imaging-features-according-to-grade-and-stage
#20
Riccardo De Robertis, Sara Cingarlini, Paolo Tinazzi Martini, Silvia Ortolani, Giovanni Butturini, Luca Landoni, Paolo Regi, Roberto Girelli, Paola Capelli, Stefano Gobbo, Giampaolo Tortora, Aldo Scarpa, Paolo Pederzoli, Mirko D'Onofrio
AIM: To describe magnetic resonance (MR) imaging features of pancreatic neuroendocrine neoplasms (PanNENs) according to their grade and tumor-nodes-metastases stage by comparing them to histopathology and to determine the accuracy of MR imaging features in predicting their biological behavior. METHODS: This study was approved by our institutional review board; requirement for informed patient consent was waived due to the retrospective nature of the study. Preoperative MR examinations of 55 PanNEN patients (29 men, 26 women; mean age of 57...
January 14, 2017: World Journal of Gastroenterology: WJG
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