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Pancreatic neoplasms

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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/28545033/microrna-expression-levels-as-diagnostic-biomarkers-for-intraductal-papillary-mucinous-neoplasm
#2
Lei Wang, Jianming Zheng, Chang Sun, Li Wang, Gang Jin, Lei Xin, Zhendong Jin, Dong Wang, Zhaoshen Li
Intraductal papillary mucinous neoplasms (IPMNs) are deadly exocrine mucinous tumors. Currently the molecular features and diagnostic markers of IPMNs are not well understood. In this study, we performed microRNA (miRNA) profiling assays to study the potential roles of miRNAs in IPMNs using 78 cases of IPMN patients and controls. When comparing the miRNA expression between IPMN patient samples and controls, we found that miR-210, miR-223, miR-221, miR-155 and miR-187 were differentially expressed in normal pancreas and IPMNs...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28540973/pancreatic-neuroendocrine-neoplasms-management-guidelines-recommended-by-the-polish-network-of-neuroendocrine-tumours
#3
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/28540626/cross-sectional-prevalence-of-pancreatic-cystic-lesions-in-patients-with-acromegaly-a-single-center-experience
#4
Yukiko Odake, Hidenori Fukuoka, Masaaki Yamamoto, Yoshifumi Arisaka, Junya Konishi, Kenichi Yoshida, Ryusaku Matsumoto, Hironori Bando, Kentaro Suda, Hitoshi Nishizawa, Genzo Iguchi, Shozo Yamada, Wataru Ogawa, Yutaka Takahashi
PURPOSE: Acromegaly is a disease associated with an increased risk for several kinds of neoplasms including colon and thyroid cancer. Although the association between acromegaly and pancreatic neoplasms has not been elucidated, it has recently been reported that GNAS gene mutations were found in 58% of intraductal papillary mucinous neoplasms (IPMNs), which are representative pancreatic cystic lesions, suggesting a link between IPMNs and acromegaly. To assess the prevalence of pancreatic cystic lesions in patients with acromegaly, we performed a retrospective cross-sectional single institute study...
May 24, 2017: Pituitary
https://www.readbyqxmd.com/read/28539816/hsa-mir-96-and-hsa-mir-217-expression-down-regulates-with-increasing-dysplasia-in-pancreatic-intraepithelial-neoplasias-and-intraductal-papillary-mucinous-neoplasms
#5
XiaoYan Chang, ChunKai Yu, Ji Li, Shuangni Yu, Jie Chen
AIM: To compare the clinicopathological features of pancreatic intraepithelial neoplasias (PanINs) and intraductal papillary mucinous neoplasms (IPMNs), and to investigate the role of hsa-miR-96 and hsa-miR-217 in these two lesions. Methods: Formalin-fixed paraffin-embedded pancreatic specimens were selected in this study, including 58 cases of pancreatic intraepithelial neoplasias (PanINs), 45 cases of pancreatic ductal adenocarcinomas (PDAs), and 57 cases of intraductal papillary mucinous neoplasms (IPMNs)...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28537412/-solid-pseudopapillary-neoplasms-of-the-pancreas
#6
J Tesaříková, M Loveček, Č Neoral, K Vomáčková, L Bébarová, P Skalický
INTRODUCTION: Solid pseudopapillary neoplasm (SPN) is a very rare neoplasm that occurs in girls and young women in 90% of cases; the range is 779 years of age, and the median is 28 years of age. This tumour was first described by Virginia Frantz in 1959 as a papillary cystic tumour of the pancreas. METHODS: The aim of this retrospective study was to analyse the incidence of SPN in all patients with a pancreatic tumour operated at the 1st Dept. of Surgery, University Hospital Olomouc between years 2006 and 2015...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28535439/critical-focus-on-mechanisms-of-resistance-and-toxicity-of-m-tor-inhibitors-in-pancreatic-neuroendocrine-tumors
#7
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/28534524/competing-risks-for-mortality-in-patients-with-asymptomatic-pancreatic-cystic-neoplasms-implications-for-clinical-management
#8
Karl Kwok, Jonathan Chang, Lewei Duan, Brian Z Huang, Bechien U Wu
OBJECTIVES: Pancreatic cystic neoplasms (PCNs) are being detected with increased frequency. Current clinical practice guidelines emphasize management based on cyst-related features. We aimed to evaluate the impact of comorbidity on mortality in PCN patients via competing risk analysis. METHODS: We analyzed a retrospective cohort of patients diagnosed between 2005-2010, with follow-up through 2015, for overall and cause-specific mortality. Comorbidities were classified by the Charlson comorbidity index...
May 23, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28533675/comparison-of-endoscopic-ultrasound-computed-tomography-and-magnetic-resonance-imaging-in-assessment-of-detailed-structures-of-pancreatic-cystic-neoplasms
#9
Chen Du, Ning-Li Chai, En-Qiang Linghu, Hui-Kai Li, Li-Hua Sun, Lei Jiang, Xiang-Dong Wang, Ping Tang, Jing Yang
AIM: To evaluate the advantages of endoscopic ultrasound (EUS) in the assessment of detailed structures of pancreatic cystic neoplasms (PCNs) compared to computed tomography (CT) and magnetic resonance imaging (MRI). METHODS: All patients with indeterminate PCNs underwent CT, MRI, and EUS. The detailed information, including size, number, the presence of a papilla/nodule, the presence of a septum, and the morphology of the pancreatic duct of PCNs were compared among the three imaging modalities...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28530210/-role-of-the-bone-marrow-derived-stem-cells-in-pancreatic-inflammatory-disorders
#10
EDITORIAL
Krzysztof Dąbkowski, Anna Łabędź-Masłowska, Ewa Zuba-Surma, Teresa Starzyńska
Various independent studies indicate involvement of different populations of bone marrow-derived stem cells in the process of tissue regeneration. In inflammatory disorders bone marrow stem cells are mobilized into peripherial blood and further to different organs, where they take part in tissue regeneration. Experimental studies have shown that bone marrow stem cells play a pivotal role in regeneration of endo and egzocrine pancreas and have a role in pathogenesis of pancreatitis, diabetes and pancreatic neoplasms...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28529742/intraductal-tubulopapillary-neoplasm-accompanied-by-invasive-carcinoma-of-the-pancreas-a-case-report-and-review-of-the-literature
#11
Li Niu, Zhigao Xu, Huan Liu, Hong Cao, Guifang Yang
Intraductal tubulopapillary neoplasms (ITPNs) are rare pancreatic neoplasms accounting for ~0.4% of pancreatic tumors. However, their clinicopathological characteristics have not been clearly determined and the number of available clinical studies on this type of tumor is limited at present. Due to the rare incidence of ITPN, diagnosis is often delayed. We herein present a unique case of a 38-year-old man who was diagnosed with ITPN accompanied with invasive carcinoma of the pancreas and underwent total pancreatectomy...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28528374/pancreatic-cysts-and-guidelines
#12
REVIEW
James J Farrell
Pancreatic cysts, especially incidental asymptomatic ones seen on noninvasive imaging such as CT or MR imaging, remain a clinical challenge. The etiology of such cysts may range from benign cysts without any malignant potential such as pancreatic pseudocysts and serous cystadenomas to premalignant or frankly malignant cysts such as mucinous cystic neoplasms, intraductal papillary mucinous neoplasms, cystic degeneration associated with solid tumors such as pancreatic ductal adenocarcinoma or pancreatic endocrine neoplasms, and solid pseudopapillary neoplasms...
May 20, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28523328/duodenal-gastrointestinal-stromal-tumor-presenting-as-pancreatic-head-mass-a-case-report
#13
DănuŢ Vasile, George Iancu, Raluca Claudia Iancu, George Simion, Radu Constantin Ciuluvică
Duodenal gastrointestinal stromal tumors (GISTs) are uncommon. Tumors arising from the first and the second part of the duodenum (DI and DII, respectively) can be wrongly diagnosed as pancreatic mass. We present a case of a 59-year-old woman who came with abdominal pain and severe upper gastrointestinal bleeding (hemoglobin 3.5 g÷dL). A solid, heterogeneously enhancing neoplasm in the head of the pancreas was revealed preoperatively by an abdominal computed tomography scan. A diagnosis of GIST was suggested...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28521422/clinical-outcomes-and-prognostic-factors-of-resected-pancreatic-neuroendocrine-neoplasms-a-single-center-experience-in-china
#14
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/28512773/natural-history-of-intraductal-papillary-mucinous-neoplasm-and-non-neoplastic-cyst-long-term-imaging-follow-up-study
#15
Yuya Hisada, Naoyoshi Nagata, Koh Imbe, Yusuke Takasaki, Katsunori Sekine, Tsuyoshi Tajima, Mikio Yanase, Kazuma Fujimoto, Junichi Akiyama, Naomi Uemura
Pancreatic cyst is being detected with increasing frequency because of widespread use of sensitive abdominal imaging tests such as multidetector computed tomography (MDCT) and magnetic resonance imaging (MRI) [1, 2]. One study reported an incidental detection rate of 1% on MDCT studies performed for any reason [3]. Not only gastroenterologists, but also other physicians and surgeons, frequently encounter incidental pancreatic cyst. However, it is unclear how often and how long we should follow up patients with pancreatic cyst...
May 17, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/28511236/long-term-outcomes-after-endoscopic-ultrasound-guided-ablation-of-pancreatic-cysts
#16
Jun-Ho Choi, Dong Wan Seo, Tae Jun Song, Do Hyun Park, Sang Soo Lee, Sung Koo Lee, Myung-Hwan Kim
Background and study aims The aim of this study was to investigate the long-term outcomes after endoscopic ultrasound (EUS)-guided pancreatic cyst ablation. Patients and methods In a single-center, prospective study, 164 patients with pancreatic cysts underwent EUS-guided cyst ablation using ethanol with paclitaxel. The inclusion criteria were as follows: unilocular or oligolocular cysts; clinically indeterminate cysts that required EUS fine-needle aspiration; and/or cysts that grew during the observation period...
May 16, 2017: Endoscopy
https://www.readbyqxmd.com/read/28510792/a-systematic-review-of-proinsulin-secreting-pancreatic-neuroendocrine-tumors
#17
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
#18
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/28506074/primary-peripancreatic-lymph-node-tuberculosis-as-a-differential-diagnosis-of-pancreatic-neoplasia
#19
Nuria García Del Olmo, Andrea Boscà Robledo, Rafael Penalba Palmí, Elena Añón Iranzo, Javier Aguiló Lucía
Primary peripancreatic lymph node tuberculosis is an exceptional entity in immunocompetent patients, but its incidence is increasing in developed countries in recent years due to increasing immigration. It usually presents as a pancreatic mass and is misdiagnosed as pancreatic neoplasia in most cases, with the diagnosis of tuberculosis occurring after surgery. We report the case of a 38 year old Pakistani man with abdominal pain of several months duration, who was initially diagnosed with a pancreatic neoplasm after detecting a mass in the pancreatic isthmus by computed tomography (CT) and abdominal magnetic resonance imaging (MRI)...
May 16, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28502930/branch-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas-involving-type-1-localized-autoimmune-pancreatitis-with-normal-serum-igg4-levels-successfully-diagnosed-by-endoscopic-ultrasound-guided-fine-needle-aspiration-and-treated-without-pancreatic
#20
Shinsuke Koshita, Yutaka Noda, Kei Ito, Yoshihide Kanno, Takahisa Ogawa, Kaori Masu, Yoshiharu Masaki, Hiroaki Kusunose, Toshitaka Sakai, Toji Murabayashi, Sho Hasegawa, Fumisato Kozakai, Jun Horaguchi, Takashi Sawai
We herein report a 68-year-old man with branch duct intraductal papillary mucinous neoplasms of the pancreas (BD-IPMNs) involving type 1 localized autoimmune pancreatitis (AIP) with normal serum IgG4 levels. Although he was referred to our medical center due to suspicion of pancreatic cancer concomitant with BD-IPMNs, endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) revealed a mass suspected of being pancreatic cancer to be type 1 AIP. Steroid administration notably reduced the mass. Although the clinical diagnosis of pancreatic masses in patients with IPMN can be occasionally challenging, performing a pathological examination by EUS-FNA may prevent unnecessary pancreatic surgery in cases of possible AIP...
2017: Internal Medicine
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