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Intraductal pancreatic mucinous neoplasm

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https://www.readbyqxmd.com/read/29156578/pancreatic-cancer-molecular-characterization-clonal-evolution-and-cancer-stem-cells
#1
REVIEW
Elvira Pelosi, Germana Castelli, Ugo Testa
Pancreatic Ductal Adenocarcinoma (PDAC) is the fourth most common cause of cancer-related death and is the most lethal of common malignancies with a five-year survival rate of <10%. PDAC arises from different types of non-invasive precursor lesions: intraductal papillary mucinous neoplasms, mucinous cystic neoplasms and pancreatic intraepithelial neoplasia. The genetic landscape of PDAC is characterized by the presence of four frequently-mutated genes: KRAS, CDKN2A, TP53 and SMAD4. The development of mouse models of PDAC has greatly contributed to the understanding of the molecular and cellular mechanisms through which driver genes contribute to pancreatic cancer development...
November 18, 2017: Biomedicines
https://www.readbyqxmd.com/read/29151953/pancreatic-cancer-in-lynch-syndrome-patients
#2
REVIEW
Luis Bujanda, Marta Herreros-Villanueva
Although colorectal cancer (CRC) is the most common cancer type in Lynch syndrome (LS) families, patients have also increased lifetime risk of other types of tumors. The accumulated risk of pancreatic cancer (PC) in LS patients is around 3.7% and developed tumors often present a characteristically medullary appearance with prominent lymphocytic infiltration. LS patients are considered in high risk for PC development as they present 8.6-fold increase compared with the general population. Here we review PC cases reported in LS patients and current management guidelines...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29143337/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-rapidly-xenografts-in-chicken-eggs-and-predicts-aggressiveness
#3
Zhefu Zhao, Nathalie Bauer, Ewa Aleksandrowicz, Libo Yin, Jury Gladkich, Wolfgang Gross, Jörg Kaiser, Thilo Hackert, Oliver Strobel, Ingrid Herr
Intraductal papillary mucinous neoplasm (IPMN) of the pancreas has a high risk of progressing to invasive pancreatic ductal adenocarcinoma (PDA), but experimental models for IPMN are largely missing. New experimental systems for the molecular characterization of IPMN and for personalized prognosis and treatment options for IPMN are urgently needed. We analyzed the potential use of fertilized chicken eggs for the culture of freshly resected IPMN tissue. We transplanted 49 freshly resected IPMN tissues into eggs and compared the growth characteristics to IPMN tissues transplanted into mice; this was followed by an analysis of histology, morphology and marker expression...
November 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29137016/binding-pancreaticogastrostomy-anastomosis-in-central-pancreatectomy-a-single-center-experience
#4
Pengcheng Kang, Zhidong Wang, Kaiming Leng, Xiangyu Zhong, Hao Wang, Ming Wan, Sheng Tai, Yunfu Cui
A growing number of central pancreatectomies are performed. However, reconstruction of pancreaticoenteral digestive continuity after central pancreatectomy remains debated. This study evaluates the short-term outcomes of binding pancreaticogastrostomy anastomosis in central pancreatectomy.We have reviewed our experience with 52 patients who underwent binding pancreaticogastrostomy following central pancreatectomy from February 2009 to March 2015. Indication includes 6 noninvasive intraductal papillary mucinous neoplasms, 11 neuroendocrine tumors, 12 solid pseudopapillary tumor, 9 serous cystadenoma, 6 mucinous cystadenoma, and 8 focal pancreatic traumas...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29124124/preliminary-experience-with-pancreatic-sphincterotomy-as-treatment-for-intraductal-papillary-mucinous-neoplasm-associated-recurrent-pancreatitis
#5
Laura Bernardoni, Stefano Francesco Crinò, Giorgia De Conti, Maria Cristina Conti Bellocchi, Nicolò De Pretis, Antonio Amodio, Luca Frulloni, Armando Gabbrielli
Background and study aims:  Pancreatic intraductal papillary mucinous neoplasms (IPMN) are cystic tumors of the pancreas characterized by a malignant potential. IPMN have been associated with recurrent pancreatitis (RP). Obstruction of the main pancreatic duct by thick mucus has been postulated to be the cause of pancreatitis. In a few isolated reports, pancreatic sphincterotomy (PS) has been reported to reduce the frequency of pancreatitis. The aim of this study was to assess the efficacy of PS in patients with IPMN-associated RP...
November 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/29100367/plasma-exosome-mir-196a-and-mir-1246-are-potential-indicators-of-localized-pancreatic-cancer
#6
Yi-Fan Xu, Bethany N Hannafon, Yan D Zhao, Russell G Postier, Wei-Qun Ding
Patients with localized pancreatic cancer (stage I and stage IIA) have a much higher survival rate than those presenting at later stages, yet early detection remains a challenge to this malignancy. The aim of this study was to evaluate whether exosome miRNA signatures are indicative of localized pancreatic cancer. Exosomes were collected from the conditioned media of pancreatic cancer cell lines and plasma samples of localized pancreatic cancer patients (Stage I-IIA, n=15), and healthy subjects (n=15). Cellular and exosome miRNAs from pancreatic cancer cell lines were profiled by next-generation small RNA sequencing...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29081794/eus-morphology-is-reliable-in-selecting-patients-with-mucinous-pancreatic-cyst-s-most-likely-to-benefit-from-surgical-resection
#7
Siddharth Javia, Satish Munigala, Sushovan Guha, Banke Agarwal
BACKGROUND AND STUDY AIMS: Endoscopic ultrasound (EUS) surveillance of patients with mucinous pancreatic cysts relies on the assessment of morphologic features suggestive of malignant transformation. These criteria were derived from the evaluation of surgical pathology in patients with pancreatic cysts who underwent surgery. Reliability of these criteria when evaluated by EUS in identifying lesions which require surgery has still not been established. PATIENTS AND METHODS: This retrospective cohort study included seventy-eight patients who underwent surgical resection of pancreatic cysts based on EUS-FNA (fine-needle aspiration) findings suggestive of mucinous pancreatic cysts with concern for malignancy...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29079172/akr1b10-expression-by-immunohistochemistry-in-surgical-resections-and-fine-needle-aspiration-cytology-material-in-patients-with-cystic-pancreatic-lesions-potential-for-improved-non-operative-diagnosis
#8
Joseph P Connor, Karla Esbona, Kristina A Matkowskyj
Cystic pancreatic tumors account for 10% of cystic lesions in the pancreas. Evaluation focuses on identifying lesions that require surgical resection due to actual or potential malignancy. Cystic tumors with malignant potential include mucinous cystic neoplasms (MCN), intraductal papillary mucinous neoplasm (IPMN), and cystic neuroendocrine tumors. The sensitivity of endoscopic fine-needle aspiration (FNA) to diagnose such lesions is low and a more accurate marker of malignant potential is needed. Aldo-keto reductase 1B10 (AKR1B10) was originally found in human hepatocellular carcinoma...
October 24, 2017: Human Pathology
https://www.readbyqxmd.com/read/29074452/progression-of-pancreatic-branch-duct-intraductal-papillary-mucinous-neoplasm-associates-with-cyst-size
#9
Youngmin Han, Hongeun Lee, Jae Seung Kang, Jae Ri Kim, Hyeong Seok Kim, Jeong Min Lee, Kyoung-Bun Lee, Wooil Kwon, Sun-Whe Kim, Jin-Young Jang
BACKGROUNDS & AIMS: Most guidelines for management of patients with intraductal papillary mucinous neoplasms (IPMN) vary in proposed surveillance intervals and durations-these are usually determined based on expert opinions rather than substantial evidence. The progression of and optimal surveillance intervals for branch-duct IPMNs (BD-IPMN) has not been widely studied. We evaluated the progression of BD-IPMN under surveillance at a single center, and determined optimal follow-up intervals and duration...
October 23, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29047068/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-in-young-patients-tumor-biology-clinical-features-and-survival-outcomes
#10
Vicente Morales-Oyarvide, Mari Mino-Kenudson, Cristina R Ferrone, Andrew L Warshaw, Keith D Lillemoe, Dushyant V Sahani, Ilaria Pergolini, Marc A Attiyeh, Mohammad Al Efishat, Neda Rezaee, Ralph H Hruban, Jin He, Matthew J Weiss, Peter J Allen, Christopher L Wolfgang, Carlos Fernández-Del Castillo
AIM: The aim of this paper is to describe the characteristics of intraductal papillary mucinous neoplasms (IPMNs) of the pancreas in young patients. METHODS: We evaluated 1693 patients from the Pancreatic Surgery Consortium who underwent resection for IPMN and classified them as younger or older than 50 years of age at the time of surgery. We assessed the relationship of age with clinical, radiological, pathological, and prognostic features. RESULTS: We identified 90 (5%) young patients...
October 18, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29042975/comparison-of-dwibs-t2-image-fusion-and-pet-ct-for-the-diagnosis-of-cancer-in-the-abdominal-cavity
#11
Minoru Tomizawa, Fuminobu Shinozaki, Yoshitaka Uchida, Katsuhiro Uchiyama, Satomi Tanaka, Takafumi Sunaoshi, Daisuke Kano, Eriko Sugiyama, Misaki Shite, Ryouta Haga, Yoshiya Fukamizu, Toshiyuki Fujita, Satoshi Kagayama, Rumiko Hasegawa, Yoshinori Shirai, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
Fusion images of diffusion-weighted whole-body imaging with background body signal suppression and T2-weighted image (DWIBS/T2) demonstrate a strong signal for malignancies, with a high contrast against the surrounding tissues, and enable anatomical analysis. In the present study, DWIBS/T2 was compared with (18)F-fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) for diagnosing cancer in the abdomen. Patient records, including imaging results of examination conducted between November 2012 and May 2014, were analyzed retrospectively...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29024476/prevalence-and-outcomes-of-cystic-lesions-of-the-transplant-pancreas-the-university-of-wisconsin-experience
#12
Talal M Al-Qaoud, Eric J Martinez, Hans W Sollinger, Dixon B Kaufman, Robert R Redfield, Bridget Welch, Glen Leverson, Jon S Odorico
Literature on the behavior of cystic lesions in pancreas transplants is scarce, and hence a better understanding is warranted. Data on recipients and their respective donors that underwent simultaneous kidney and pancreas, pancreas transplant alone, and pancreas after kidney between 1994-2015 were reviewed (n=1185). Cystic lesions of the transplant pancreas developed in 22 patients (1.8%): 12 pseudocysts, 2 cysts/remnants, 4 intraductal papillary mucinous neoplasms (IPMN), 2 adenocarcinomas, 1 low grade intraepithelial pancreatic neoplasia, and 1 case of polycystic kidney disease...
October 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29024280/laparoscopic-pancreaticoduodenectomy-in-brisbane-australia-an-initial-experience
#13
Bhavik Patel, Universe Leung, Jerry Lee, Richard Bryant, Nicholas O'Rourke, David Cavallucci
BACKGROUND: The role of minimally invasive approach for pancreaticoduodenectomy has not yet been well defined in Australia. We present our early experience with laparoscopic pancreaticoduodenectomy (LPD) from Brisbane, Australia. METHODS: Retrospective review in a prospectively collected database of patients undergoing LPD between 2006 and 2016 was performed. Patients who underwent a hybrid LPD (HLPD) mobilization approach and resection followed by open reconstruction and totally LPD (TLPD) approach were included in this study...
October 11, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29021473/oncocytic-type-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-with-unusually-low-mucin-production-mimicking-intraductal-tubulopapillary-neoplasm-a-report-of-a-case-diagnosed-by-a-preoperative-endoscopic-biopsy
#14
Yukinari Yoshida, Takao Endo, Eiichi Tanaka, Takefumi Kikuchi, Kimishige Akino, Hiroaki Mita, Yasuyo Adachi, Masahiro Nakamura, Yasushi Adachi, Yoshifumi Ishii, Joe Matsumoto, Satoshi Hirano, Takeo Nitta, Tomoko Mitsuhashi, Yasuo Kato
We herein report the case of a 78-year-old woman with an intraductal tumor with scant mucin production in a moderately dilated main pancreatic duct that resembled an intraductal tubulopapillary neoplasm (ITPN) on imaging. An endoscopic transpapillary forceps biopsy enabled an accurate preoperative diagnosis of the tumor as an oncocytic type intraductal papillary mucinous neoplasm (IPMN) of the pancreas microscopically showing papillary growth consisting of oncocytic cells with a typical mucin expression profile, although with few intraepithelial lumina containing mucin...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28979722/pancreatic-adenosquamous-carcinoma-and-intraductal-papillary-mucinous-neoplasm-in-a-cdkn2a-germline-mutation-carrier
#15
Fernando Martínez de Juan, María Reolid Escribano, Carmen Martínez Lapiedra, Fernanda Maia de Alcantara, María Caballero Soto, Ana Calatrava Fons, Isidro Machado
A 69-year-old woman from a kindred with familial atypical multiple mole melanoma and carrier of a germline mutation in CDKN2A, presented with abdominal pain caused by a solid-cystic pancreatic mass. The patient had an abdominal computed tomography three years before in which there was no evidence of pancreatic lesion. The endoscopic ultrasound guided fine needle aspiration showed adenocarcinoma with squamous component. After surgical resection the final diagnosis was adenosquamous pancreatic carcinoma (ASPC) arising in an intraductal papillar mucinous neoplasm (IPMN)...
September 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28970292/preoperative-next-generation-sequencing-of-pancreatic-cyst-fluid-is-highly-accurate-in-cyst-classification-and-detection-of-advanced-neoplasia
#16
Aatur D Singhi, Kevin McGrath, Randall E Brand, Asif Khalid, Herbert J Zeh, Jennifer S Chennat, Kenneth E Fasanella, Georgios I Papachristou, Adam Slivka, David L Bartlett, Anil K Dasyam, Melissa Hogg, Kenneth K Lee, James Wallis Marsh, Sara E Monaco, N Paul Ohori, James F Pingpank, Allan Tsung, Amer H Zureikat, Abigail I Wald, Marina N Nikiforova
OBJECTIVE: DNA-based testing of pancreatic cyst fluid (PCF) is a useful adjunct to the evaluation of pancreatic cysts (PCs). Mutations in KRAS/GNAS are highly specific for intraductal papillary mucinous neoplasms (IPMNs) and mucinous cystic neoplasms (MCNs), while TP53/PIK3CA/PTEN alterations are associated with advanced neoplasia. A prospective study was performed to evaluate preoperative PCF DNA testing. DESIGN: Over 43-months, 626 PCF specimens from 595 patients were obtained by endoscopic ultrasound (EUS)-fine needle aspiration and assessed by targeted next-generation sequencing (NGS)...
September 28, 2017: Gut
https://www.readbyqxmd.com/read/28963386/possible-congenital-dilatation-of-the-pancreatic-duct
#17
Abhijeet Tavare, Alex N Gordon-Weeks, Helen Bungay, Michael Silva
The main pancreatic duct can become dilated in a number of conditions. We describe a patient with gross dilatation of the main pancreatic duct without evidence of causative underlying pathology suggesting congenital dilatation of the pancreatic duct. A 36-year-old man presented with signs of intestinal obstruction and a history of surgery for congenital pyloric stenosis. Incidental findings on CT showed a massively dilated main pancreatic duct. On MRI there was no duct irregularity or solid mural nodule, making a main duct intraductal papillary mucinous neoplasm unlikely...
September 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28958254/invasive-pancreatic-adenocarcinoma-arising-in-intraductal-papillary-mucinous-neoplasm-of-heterotopic-pancreatic-origin-located-in-the-stomach
#18
Wade O Christopher, Truman M Earl, Louis V Puneky, Ashley H Seawright, James J Wynn, Christopher D Anderson, W Shannon Orr
No abstract text is available yet for this article.
September 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28942226/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-associated-with-neuroendocrine-tumor-a-case-report
#19
M Boge, B Gurses, M Vural, S Yilmaz, S Goksel, O Bilge
INTRODUCTION: Intraductal papillary mucinous neoplasm is an uncommon cystic tumor of pancreas that can be associated with ductal adenocarcinoma. Coexistence of pancreatic IPMN and neuroendocrine tumor is very rare. Here, we report the imaging features of mixed type intraductal papillary mucinous neoplasia of the pancreas with high grade dysplasia together with neuroendocrine carcinoma and perform review of the literature. PRESENTATION: A 68-year old patient has been evaluated for possible IPMN that was suspected during ultrasound...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28938594/microrna-expression-levels-as-diagnostic-biomarkers-for-intraductal-papillary-mucinous-neoplasm
#20
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...
August 29, 2017: Oncotarget
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