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Cystic pancreatic neoplasia

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https://www.readbyqxmd.com/read/29289465/investigating-the-role-of-transcription-factors-of-pancreas-development-in-pancreatic-cancer
#1
REVIEW
Ahmad Abu Turab Naqvi, Gulam Mustafa Hasan, Md Imtaiyaz Hassan
Pancreatic cancer (PC) is the seventh most common cause of cancer-related deaths worldwide that kills more than 300,000 people every year. Prognosis of PC is very poor with a five-year survival rate about 5%. The most common and highly observed type of PC is pancreatic ductal adenocarcinoma (PDAC). It is preceded by the progression of precursor lesions such as Pancreatic Intraepithelial Neoplasia (PanIN), Intraductal Papillary Neoplasm (IPMN) and Mucinous Cystic Neoplasm (MCN). PanIN is the most common among these premalignant lesions...
December 24, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29273451/loss-of-pten-and-activation-of-kras-synergistically-induce-formation-of-intraductal-papillary-mucinous-neoplasia-from-pancreatic-ductal-cells-in-mice
#2
Janel L Kopp, Claire L Dubois, David F Schaeffer, Atefeh Samani, Farnaz Taghizadeh, Robert W Cowan, Andrew D Rhim, Bangyan L Stiles, Mark Valasek, Maike Sander
BACKGROUND & AIMS: Intraductal papillary mucinous neoplasias (IPMN) are precancerous cystic lesions that can develop into pancreatic ductal adenocarcinomas (PDACs). These large macroscopic lesions are frequently detected during medical imaging, but it is unclear how they form or progress to PDAC. We aimed to identify cells that form IPMNs and mutations that promote IPMN development and progression. METHODS: We generated mice with disruption of Pten specifically in ductal cells (Sox9CreERT2;Ptenflox/flox;R26RYFP or PtenΔDuct/ΔDuct mice) and used PtenΔDuct/+ and Pten+/+ mice as controls...
December 19, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29193477/outcomes-of-endoscopic-ultrasound-guided-pancreatic-fnac-diagnosis-for-solid-and-cystic-lesions-at-manchester-royal-infirmary-based-upon-the-papanicolaou-society-of-cytopathology-pancreaticobiliary-terminology-classification-scheme
#3
P K Wright, D A Shelton, M R Holbrook, S A Thiryayi, N Narine, D Slater, D N Rana
OBJECTIVE: To compare endoscopic ultrasound (EUS)-FNAC diagnosis of pancreatic lesions with patient outcome based upon the Papanicolaou Society of Cytopathology pancreaticobiliary terminology classification scheme diagnostic categories: Panc 1 (non-diagnostic); Panc 2 (negative for malignancy/neoplasia); Panc 3 (atypical); Panc 4B (neoplastic, benign); Panc 4O (neoplastic, other); Panc 5 (suspicious of malignancy); and Panc 6 (positive/malignant). METHODS: All EUS-FNA pancreas specimens taken at Manchester Royal Infirmary in 2015 were prospectively classified according to the above scheme at the time of cytology reporting and data recorded prospectively...
November 29, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/29189063/classification-morphology-molecular-pathogenesis-and-outcome-of-premalignant-lesions-of-the-pancreas
#4
REVIEW
Meredith E Pittman, Rema Rao, Ralph H Hruban
CONTEXT: - Invasive pancreatic ductal adenocarcinoma has a greater than 90% mortality rate at 5 years. Understanding noninvasive, curable precursor lesions gives us the best hope for reducing mortality from pancreatic ductal adenocarcinoma. The 3 pancreatic precursor lesions that have been well studied include intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia. OBJECTIVE: - To give an update on the latest clinical, molecular, and pathologic advances in intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia for the general surgical pathologist...
December 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29156578/pancreatic-cancer-molecular-characterization-clonal-evolution-and-cancer-stem-cells
#5
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/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
#6
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/29072081/cystic-pancreatic-neuroendocrine-tumors-cpnets-a-systematic-review-and-meta-analysis-of-case-series
#7
Luis Hurtado-Pardo, Javier A Cienfuegos, Miguel Ruiz-Canela, Pablo Panadero, Alberto Benito, José Luis Hernández Lizoain
Cystic pancreatic neuroendocrine tumors represent 13% of all neuroendocrine tumors. The aim of this study is to analyze the phenotype and biologic behavior of resected cystic neuroendocrine tumors. A systematic review and meta-analysis were conducted until September 2016 using a search in Medline, Scopus, and EMBASE with the terms "cystic pancreatic endocrine neoplasm", "cystic islets tumors" and "cystic islets neoplasms". From the 795 citations recovered 80 studies reporting on 431 patients were selected. 87...
November 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/29044541/validation-of-sendai-and-fukuoka-consensus-guidelines-in-predicting-malignancy-in-patients-with-preoperatively-diagnosed-mucinous-pancreatic-cystic-neoplasms
#8
Wentao Zhou, Yadong Xu, Yefei Rong, Wenchuan Wu, Tiantao Kuang, Baobao Xin, Hongxu Zhu, Wenhui Lou, Dansong Wang
BACKGROUND AND OBJECTIVES: The Sendai consensus guidelines (SCG) and Fukuoka consensus guidelines (FCG) have been examined for their roles in predicting advanced neoplasia (AN) in pancreatic cystic neoplasm (PCN) patients with mixed results. We aim to evaluate the utilities of both guidelines in a Chinese cohort with preoperatively diagnosed mucinous PCNs. METHODS: One hundred ninety-seven patients who underwent resections from 2008 to 2015 in Zhong Shan Hospital, Fudan University for suspected PCNs were retrospectively reviewed...
October 16, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29024476/prevalence-and-outcomes-of-cystic-lesions-of-the-transplant-pancreas-the-university-of-wisconsin-experience
#9
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/28970292/preoperative-next-generation-sequencing-of-pancreatic-cyst-fluid-is-highly-accurate-in-cyst-classification-and-detection-of-advanced-neoplasia
#10
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/28942226/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-associated-with-neuroendocrine-tumor-a-case-report
#11
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/28898198/appropriate-interval-for-imaging-follow-up-of-small-simple-pancreatic-cysts
#12
Jordan Menda, Maile E Yoon, Hyo-Chun Yoon
CONTEXT: The frequency at which patients should undergo follow-up imaging of small pancreatic cysts is problematic because different medical societies have different follow-up guidelines. OBJECTIVE: To determine whether short-term follow-up of small pancreatic cysts is necessary to detect pancreatic cancer or cystic neoplasia. DESIGN: We retrospectively reviewed all abdominal magnetic resonance imaging (MRI) studies obtained in a geographically isolated health maintenance organization between January 1, 2012, and December 31, 2014, looking for pancreatic cysts...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28852316/serous-pancreatic-neoplasia-data-and-review
#13
Christoph F Dietrich, Yi Dong, Christian Jenssen, Valentina Ciaravino, Michael Hocke, Wen-Ping Wang, Eike Burmester, Kathleen Moeller, Nathan Ss Atkinson, Paola Capelli, Mirko D'Onofrio
AIM: To describe the imaging features of serous neoplasms of the pancreas using ultrasound, endoscopic ultrasound, computed tomography and magnetic resonance imaging. METHODS: This multicenter international collaboration enhances a literature review to date, reporting features of 287 histologically confirmed cases of serous pancreatic cystic neoplasms (SPNs). RESULTS: Female predominance is seen with most SPNs presenting asymptomatically in the 5th through 7th decade...
August 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28831506/-cystic-pancreatic-tumors-diagnostics-and-new-biomarkers
#14
REVIEW
A W Berger, T Seufferlein, A Kleger
Mortality due to pancreatic ductal adenocarcinoma (PDAC) will increase in the near future. The only curative treatment for PDAC is radical resection; however, even small carcinomas exhibit micrometastases leading to early relapse. Accordingly, detection of premalignant precursor lesions is important. In essence, PDAC develops from three precursor lesions: pancreatic intraepithelial lesions (PanIN), intraductal papillary-mucinous neoplasia (IPMN) and mucinous-cystic neoplasia (MCN). Together with serous cystic neoplasia (SCN) and solid pseudopapillary neoplasia (SPN), these cystic lesions constitute the most common cystic neoplasms in the pancreas...
November 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28698299/neat1-is-a-p53-inducible-lincrna-essential-for-transformation-suppression
#15
Stephano S Mello, Carolyn Sinow, Nitin Raj, Pawel K Mazur, Kathryn Bieging-Rolett, Daniela Kenzelmann Broz, Jamie F Conklin Imam, Hannes Vogel, Laura D Wood, Julien Sage, Tetsuro Hirose, Shinichi Nakagawa, John Rinn, Laura D Attardi
The p53 gene is mutated in over half of all cancers, reflecting its critical role as a tumor suppressor. Although p53 is a transcriptional activator that induces myriad target genes, those p53-inducible genes most critical for tumor suppression remain elusive. Here, we leveraged p53 ChIP-seq (chromatin immunoprecipitation [ChIP] combined with high-throughput sequencing) and RNA-seq (RNA sequencing) data sets to identify new p53 target genes, focusing on the noncoding genome. We identify Neat1, a noncoding RNA (ncRNA) constituent of paraspeckles, as a p53 target gene broadly induced by mouse and human p53 in different cell types and by diverse stress signals...
June 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28676441/chronic-toxicity-and-oncogenicity-of-octamethylcyclotetrasiloxane-d4-in-the-fischer-344-rat
#16
Paul A Jean, Kathleen P Plotzke
Octamethylcyclotetrasiloxane (D4) is a cyclic volatile methylsiloxane primarily used in the synthesis of silicon-based materials used in a variety of consumer products. This paper details the chronic toxicity and oncogenicity evaluation of D4 in the Fischer 344 rat. Animals were exposed to 0, 10, 30, 150, or 700ppm D4 vapor for 6h/day, 5days/week for up to 104 weeks in whole-body inhalation chambers. Effects of two year chronic exposure included increased liver, kidney, testes, and uterine weight with correlating microscopic findings of hepatocellular hypertrophy (males only), chronic nephropathy (both sexes), interstitial cell hyperplasia, and cystic endometrial hyperplasia and endometrial adenoma, respectively...
October 20, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28650600/clear-cell-neuroendocrine-tumor-of-the-pancreas-in-von-hippel-lindau-disease-a-case-report-and-literature-review
#17
Chang Gok Woo, Seo-Youn Choi, Jeong Ja Kwak, Susie Chin, Hee Kyung Kim
Clear cell neuroendocrine tumor (NET) of the pancreas is found in von Hippel-Lindau (VHL) disease, multiple endocrine neoplasia type I (MEN I), and sporadic form. Clear cell NETs are often misdiagnosed as metastatic renal cell carcinoma. A 47-year-old woman with VHL was found to have a mass in the pancreatic tail and two masses in the right kidney with two cysts. A distal pancreatectomy and right radical nephrectomy were performed. The pancreatic lesion was a well-circumscribed, golden-yellow solid mass, which was lobulated by septal fibrosis...
May 1, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28456590/management-of-patients-with-pancreatic-cystic-lesions-a-case-based-survey
#18
B Müssle, M Distler, S Wolk, S V Shrikhande, D E Aust, A Arlt, J Weitz, T Hackert, T Welsch
BACKGROUND: Pancreatic cystic lesions (PCL), including intraductal papillary mucinous neoplasia (IPMN), harbor different malignant potential and the optimal management is often challenging. The present study aims to depict the compliance of experts with current consensus guidelines and the accuracy of treatment recommendations stratified by the medical specialty and hospital volume. METHODS: An international survey was conducted using a set of 10 selected cases of PCL that were presented to a cohort of international experts on pancreatology...
May 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28413390/a-serous-cystic-neoplasm-of-the-pancreas-coexisting-with-high-grade-pancreatic-intraepithelial-neoplasia-mimicking-an-intraepithelial-papillary-mucinous-neoplasm-a-case-report
#19
Aya Kawanishi, Kenichi Hirabayashi, Hirotaka Kono, Yumi Takanashi, Atsuko Hadano, Yohei Kawashima, Masami Ogawa, Yoshiaki Kawaguchi, Misuzu Yamada, Toshio Nakagohri, Naoya Nakamura, Tetsuya Mine
Serous cystic neoplasms of the pancreas are rare exocrine pancreatic neoplasms, most of which are benign and do not communicate with the pancreatic duct. Pancreatic intraepithelial neoplasm (PanIN) is considered a precursor of ductal adenocarcinoma that is microscopically recognized in pancreatic ducts. A 67-year-old Japanese woman presented with a 10-mm multilocular cystic lesion at the pancreatic body. Magnetic resonance pancreatography showed stenosis of the main pancreatic duct at the pancreatic body and dilatation of the distal side of the main pancreatic duct...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28383565/diversity-of-precursor-lesions-for-pancreatic-cancer-the-genetics-and-biology-of-intraductal-papillary-mucinous-neoplasm
#20
Krushna C Patra, Nabeel Bardeesy, Yusuke Mizukami
Pancreatic ductal adenocarcinoma (PDA), one of the most lethal cancers worldwide, is associated with two main types of morphologically distinct precursors-pancreatic intraepithelial neoplasia (PanIN) and intraductal papillary mucinous neoplasm (IPMN). Although the progression of PanIN into invasive cancer has been well characterized, there remains an urgent need to understand the biology of IPMNs, which are larger radiographically detectable cystic tumors. IPMNs comprise a number of subtypes with heterogeneous histopathologic and clinical features...
April 6, 2017: Clinical and Translational Gastroenterology
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