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Pancreatic cystic neoplasms

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https://www.readbyqxmd.com/read/28633941/pancreatic-cyst-fluid-vascular-endothelial-growth-factor-a-and-carcinoembryonic-antigen-a-highly-accurate-test-for-the-diagnosis-of-serous-cystic-neoplasm
#1
Rosalie A Carr, Michele T Yip-Schneider, Scott Dolejs, Bradley A Hancock, Huangbing Wu, Milan Radovich, C Max Schmidt
BACKGROUND: Accurate differentiation of pancreatic cystic lesions is important for pancreatic cancer early detection and prevention as well as avoidance of unnecessary surgical intervention. Serous cystic neoplasms (SCN) have no malignant potential, but may mimic premalignant mucinous cystic lesions: mucinous cystic neoplasm (MCN) and intraductal papillary mucinous neoplasm (IPMN). We recently identified vascular endothelial growth factor (VEGF)-A as a novel pancreatic fluid biomarker for SCN...
May 18, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28631390/metastatic-tonsillar-squamous-cell-carcinoma-masquerading-as-a-pancreatic-cystic-tumor-and-diagnosed-by-eus-guided-fna
#2
Ryan Glass, Sherif A Andrawes, Diane Hamele-Bena, Guo-Xia Tong
Metastatic carcinoma to the pancreas is uncommon and head and neck squamous carcinoma metastatic to the pancreas is extremely rare. Metastatic squamous cell carcinoma to the pancreas presents a unique diagnostic challenge: in addition to mimicking the rare primary squamous cell carcinoma of the pancreas based on cytologic, histologic, and immunohistochemical features, it may be mistaken for a cystic neoplasm of the pancreas because of its high predilection for cystic degeneration in metastatic sites. Herein, we report a case of tonsillar squamous cell carcinoma with a cystic pancreatic metastasis diagnosed by ultrasound-guided fine needle aspiration biopsy (EUS-FNA)...
June 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28627654/bioinformatics-analysis-of-transcription-profiling-of-solid-pseudopapillary-neoplasm-of-the-pancreas
#3
Yongping Zhang, Xu Han, Hao Wu, Yifeng Zhou
Solid pseudopapillary neoplasm (SPN) of the pancreas is a low-grade malignant neoplasm that accounts for ~5% of cystic pancreatic tumors and ~0.9‑2.7% of exocrine pancreatic tumors. The transcription profiling data (GSE43795) of 14 SPN and 6 control samples were downloaded from the Gene Expression Omnibus (GEO) database. Using the Limma package, Student's t‑tests were performed to identify differentially expressed genes (DEGs) between SPN and control samples [with the following criterion: False discovery rate (FDR)<0...
June 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28609360/pancreatic-cysts-part-1-using-the-american-gastroenterological-association-guidelines-for-the-management-of-pancreatic-cysts-a-practical-approach
#4
James M Scheiman
The recent publication of evidence-based guidelines by the American Gastroenterological Association for the management of the incidental pancreatic cyst has stimulated considerable discussion among clinicians and researchers. The guidelines examined the evidence in an accompanying technical review defining current diagnostic approaches, as well as cyst natural history. Recognizing that the risk of malignant degeneration of these cystic neoplasms has been overestimated, the guidelines boldly increased thresholds for endoscopic ultrasound imaging and cyst fluid sampling, as well as proposing a reduced frequency of surveillance compared with previous expert consensus recommendations...
July 2017: Pancreas
https://www.readbyqxmd.com/read/28599853/post-obstructive-cyst-formation-in-pancreas-and-cystic-acinar-transformation-are-they-same
#5
Xuchen Zhang, Hongfa Zhu, Xiu Yang, Volkan N Adsay, Dhanpat Jain
Pancreatic "acinar cell cystadenoma" (PACA) is a rare benign pancreatic cystic lesion showing acinar cell differentiation. The neoplastic nature of PACA has been questioned and its exact pathogenesis remains unclear. To investigate that acinar cell differentiation is a non-specific metaplastic phenomenon that can occur in pancreatic ductal system, especially when chronically inflamed and dilated, and doesn't necessarily imply an acinar cell neoplasm, we retrospectively analyzed cases diagnosed as PACA and cases with post-obstructive cystic dilatation of pancreatic ducts for acinar cell differentiation using immunohistochemistry for trypsin...
April 1, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28590817/long-term-surveillance-and-timeline-of-progression-of-presumed-low-risk-intraductal-papillary-mucinous-neoplasms
#6
Maia Kayal, Lyndon Luk, Elizabeth M Hecht, Catherine Do, Beth A Schrope, John A Chabot, Tamas A Gonda
OBJECTIVE: The purpose of this study was to assess risk of progression and rate of growth of presumed low-risk branch duct intraductal papillary mucinous neoplasms surveyed for more than 4 years. MATERIALS AND METHODS: A keyword search of electronic medical charts was performed for the years 2001-2013. Cystic lesions that met the criteria for clinical branch duct intraductal papillary mucinous neoplasm, lacked baseline high-risk or worrisome features, and had more than 4 years of surveillance were included in this study...
June 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28588880/estimation-of-the-prevalence-of-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-in-the-french-population-through-patients-waiting-for-liver-transplantation
#7
Lucie Laurent, Marie-Pierre Vullierme, Vinciane Rebours, Frédérique Maire, Olivia Hentic, Claire Francoz, François Durand, Philippe Ruszniewski, Philippe Lévy
BACKGROUND AND AIMS: Some studies have explored the prevalence of pancreatic cystic lesions (PCLs). Only one study based on magnetic resonance imaging (MRI) report examination focused specifically on intraductal papillary mucinous neoplasm (IPMN) in a European general population. The aim of this study was to evaluate the prevalence of IPMN in a population of patients who had MRI for a non-pancreatic disease. METHODS: We conducted a retrospective, single-center study...
June 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28587436/pathology-comparative-study-on-the-characteristic-ct-signs-in-solid-pseudopapillary-neoplasm-of-the-pancreas
#8
Xi Bo Fu, Zhi Qiang Hao, Jin Yun He, Hai Shang, Qing Cai Fu, Xiang Dong Hua, Ye Fu Liu, Jie Lin
In order to analyze characteristic CT signs in the solid pseudopapillary tumor of the pancreas, a retrospective analysis was conducted on 49 patients with pseudopapillary tumor of the pancreas who where treated in Liaoning Cancer Hospital. All of the patients were confirmed by pathology, CT signs were analyzed and a pathology contrast was conducted. Furthermore, all cases had single lesions; 7 cases in the pancreatic head, 23 cases in the pancreatic body, 15 cases in the pancreatic body-tail and 4 cases in the pancreatic tail...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28573215/molecular-histologic-and-radiologic-findings-of-high-grade-invasive-adenocarcinoma-arising-in-oncocytic-subtype-of-intraductal-papillary-mucinous-neoplasm-a-case-report-and-review-of-literature
#9
Jared Shows, Christan Bartsch, Heather Carmichael, Irfan Qureshi, Barish Edil, Hubert Fenton
Background: We present a case of adenocarcinoma arising in the oncocytic subtype of intraductal papillary mucinous neoplasm (O-IPMN), with emphasis on the molecular findings in the adenocarcinoma component. Tissue microdissection and next-generation sequencing were performed using a 26 gene panel (AKT1, ALK, APC, BRAF, CDH1, CTNNB1, EGFR, ERBB2, FBXW7, FGFR2, FOXL2, GNAQ, GNAS, KIT, KRAS, MAP2K1, MET, MSH6, NRAS, PDGFRA, PIK3CA, PTEN, SMAD4, SRC, STK11, TP53) of cancer-related genes. Case Presentation: A 69-year-old Caucasian female presented with chest pain and was found to have findings consistent with acute pancreatitis...
2017: J Pancreat Cancer
https://www.readbyqxmd.com/read/28570009/mucinous-cystic-neoplasms-of-the-liver-and-pancreas-relationship-between-kras-driver-mutations-and-disease-progression
#10
Kohei Fujikura, Masayuki Akita, Shiho Abe-Suzuki, Tomoo Itoh, Yoh Zen
AIMS: To compare the oncogenic mutation status among mucinous cystic neoplasms (MCNs) of different histological grades and between liver and pancreatic MCNs. METHODS AND RESULTS: KRAS, GNAS, RNF43 and PIK3CA were sequenced in 25 surgical cases of hepatopancreatic MCNs. Molecular features were correlated with clinicopathological and immunohistochemical findings. KRAS mutations were identified in 5 cases (20%), while GNAS, RNF43 and PIK3CA were the wild-type in all cases...
June 1, 2017: Histopathology
https://www.readbyqxmd.com/read/28566895/in-vivo-and-ex-vivo-confocal-endomicroscopy-of-pancreatic-cystic-lesions-a-prospective-study
#11
Somashekar G Krishna, Rohan M Modi, Amrit K Kamboj, Benjamin J Swanson, Phil A Hart, Mary E Dillhoff, Andrei Manilchuk, Carl R Schmidt, Darwin L Conwell
AIM: To investigate the reproducibility of the in vivo endoscopic ultrasound (EUS) - guided needle based confocal endomicroscopy (nCLE) image patterns in an ex vivo setting and compare these to surgical histopathology for characterizing pancreatic cystic lesions (PCLs). METHODS: In a prospective study evaluating EUS-nCLE for evaluation of PCLs, 10 subjects underwent an in vivo nCLE (AQ-Flex nCLE miniprobe; Cellvizio, MaunaKea, Paris, France) during EUS and ex vivo probe based CLE (pCLE) of the PCL (Gastroflex ultrahigh definition probe, Cellvizio) after surgical resection...
May 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28554050/xanthogranulomatous-pancreatitis-a-review-of-the-imaging-characteristics-of-this-rare-and-often-misdiagnosed-lesion-of-the-pancreas
#12
David Becker-Weidman, Bernard Floré, Koenraad J Mortelé
Xanthogranulomatous pancreatitis (XGP) is an extremely rare cause of a cystic pancreatic mass. The pathophysiology of this process is not entirely clear but likely results from a combination of duct obstruction, infection, and repeated hemorrhage. It is difficult to differentiate this inflammatory lesion from a cystic neoplasm and, therefore, in the majority of cases XGP is misdiagnosed as a neoplasm on preoperative imaging. In this report, we describe a case of XGP, the imaging characteristics of XGP, and a differential diagnosis for a cystic pancreatic lesion...
May 23, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28552018/molecular-biomarkers-have-the-potential-to-improve-the-diagnostic-work-up-of-pancreatic-cystic-lesions
#13
Julie Isabelle Plougmann, Pia Klausen, John Gásdal Karstensen, Peter Vilmann, Jane Preuss Hasselby, Carsten Palnæs Hansen, Evangelos Kalaitzakis
Pancreatic cysts are increasingly diagnosed due to the widespread use of cross-sectional imaging, and some of these lesions harbor malignant potential. Mucinous cystic neoplasms and intraductal papillary mucinous neoplasms are the major premalignant cystic neoplasms of the pancreas. A variety of diagnostic tools are used to predict the malignant potential of these cysts, but specificity and sensitivity are limited. Thus, many patients undergo unnecessary operations for benign cysts. Balancing the risks of watchful waiting with those of operative management is key in managing these lesions...
May 27, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28540626/cross-sectional-prevalence-of-pancreatic-cystic-lesions-in-patients-with-acromegaly-a-single-center-experience
#14
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/28537412/-solid-pseudopapillary-neoplasms-of-the-pancreas
#15
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/28534524/competing-risks-for-mortality-in-patients-with-asymptomatic-pancreatic-cystic-neoplasms-implications-for-clinical-management
#16
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
#17
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/28528374/pancreatic-cysts-and-guidelines
#18
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/28511236/long-term-outcomes-after-endoscopic-ultrasound-guided-ablation-of-pancreatic-cysts
#19
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/28500587/insights-into-the-pathogenesis-of-pancreatic-cystic-neoplasms
#20
REVIEW
Vrishketan Sethi, Bhuwan Giri, Ashok Saluja, Vikas Dudeja
With the current epidemic of diagnosed pancreatic cystic neoplasms on the rise, a substantial amount of work has been done to unravel their biology, thus leading to implications on clinical decision making. Recent genetic profiling of resected human specimens has identified alterations in signaling pathways involving KRAS and GNAS signaling as early events in the pathogenesis of intraductal pancreatic mucinous neoplasms. Progressively, mutations in genes such as TP53, SMAD4, RNF43, and others are thought to characterize invasive and advanced lesions...
May 12, 2017: Digestive Diseases and Sciences
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