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https://www.readbyqxmd.com/read/28089954/solid-pseudopapillary-neoplasm-of-the-pancreas-ct-imaging-features-and-radiologic-pathologic-correlation
#1
Gopinathan Anil, Junwei Zhang, Nawal Ebrahim Al Hamar, Min En Nga
PURPOSE: We aimed to evaluate the imaging features of solid pseudopapillary neoplasm (SPN) of the pancreas with an emphasis on radiologic-pathologic correlation. METHODS: Ten patients (all female; mean age, 32 years) with histologic or cytologic diagnosis of SPN encountered between January 2007 and December 2013 were included in this study. Preoperative computed tomography (CT) images were reviewed for location, attenuation, enhancement pattern, margin, shape, size, morphology, presence of capsule and calcification...
January 16, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28088602/aggressive-surgical-approach-to-the-management-of-neuroendocrine-tumors-a-report-of-1-000-surgical-cytoreductions-by-a-single-institution
#2
Eugene A Woltering, Brianne A Voros, David T Beyer, Yi-Zarn Wang, Ramcharan Thiagarajan, Pamela Ryan, Anne Wright, Robert A Ramirez, M Jennifer Ricks, J Philip Boudreaux
BACKGROUND: Neuroendocrine tumors (NETs) are rare neoplasms. Our group has treated over 2,000 NET patients and has performed over 1,000 surgical cytoreductive procedures. STUDY DESIGN: Records of 834 NET patients who underwent surgical cytoreduction at our institution were reviewed. Demographic information, intraoperative findings, extent of disease, complications, and survival rates were calculated. RESULTS: 800 patients underwent 1,001 cytoreductive surgeries...
January 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28088597/phase-ii-randomized-trial-of-negative-pressure-wound-therapy-to-decrease-surgical-site-infection-in-patients-undergoing-laparotomy-for-gastrointestinal-pancreatic-and-peritoneal-surface-malignancies
#3
Perry Shen, Aaron Blackham, Stacey Lewis, Clancy Clark, Russell Howerton, Harveshp Mogal, Rebecca Dodson, Gregory B Russell, Edward A Levine
BACKGROUND: Surgical site infections (SSI) remain a major source of morbidity and cost after resection of intra-abdominal malignancies. Negative pressure wound therapy (NPWT) has been reported to significantly reduce SSI when applied to the closed laparotomy incision. This paper reports results of a randomized clinical trial examining the effect of NPWT on SSI rates in surgical oncology patients with increased risk for infectious complications. STUDY DESIGN: From 2012-2016, 265 patients underwent open resection of intra-abdominal neoplasms stratified into three groups: gastrointestinal (n=57), pancreas (n=73), and peritoneal surface malignancy (n=135)...
January 11, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28079824/inflammatory-myofibroblastic-tumors-of-the-pancreas-in-children-a-case-report-and-literature-review
#4
Hsien-Kuan Liu, Yung-Cheng Lin, Ming-Lun Yeh, Yaw-Sen Chen, Yu-Tsun Su, Ching-Chung Tsai
INTRODUCTION: Inflammatory myofibroblastic tumors are an uncommon neoplasm, which are very rarely located in the pancreas. Clinically and radiologically, this rare pancreatic tumor presents as an abdominal mass lesion that mimics other pancreatic tumors, and should therefore be considered in the differential diagnosis of pancreatic tumors. CLINICAL FINDINGS AND DIAGNOSIS: The 15-year-old boy complained of abdominal pain over the left upper quadrant with intermittent fever for 7 days...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28079542/development-and-validation-of-a-multi-institutional-preoperative-nomogram-for-predicting-grade-of-dysplasia-in-intraductal-papillary-mucinous-neoplasms-ipmns-of-the-pancreas-a-report-from-the-pancreatic-surgery-consortium
#5
Marc A Attiyeh, Carlos Fernández-Del Castillo, Mohammad Al Efishat, Anne A Eaton, Mithat Gönen, Ruqayyah Batts, Ilaria Pergolini, Neda Rezaee, Keith D Lillemoe, Cristina R Ferrone, Mari Mino-Kenudson, Matthew J Weiss, John L Cameron, Ralph H Hruban, Michael I D'Angelica, Ronald P DeMatteo, T Peter Kingham, William R Jarnagin, Christopher L Wolfgang, Peter J Allen
OBJECTIVE: Previous nomogram models for patients undergoing resection of intraductal papillary mucinous neoplasms (IPMNs) have been relatively small single-institutional series. Our objective was to improve upon these studies by developing and independently validating a new model using a large multiinstitutional dataset. SUMMARY BACKGROUND DATA: IPMNs represent the most common radiographically identifiable precursor lesions of pancreatic cancer. They are a heterogenous group of neoplasms in which more accurate markers of high-grade dysplasia or early invasive carcinoma could help avoid unnecessary surgery in 1 case and support potentially curative intervention (resection) in another...
September 20, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/28069746/non-alcoholic-fatty-pancreas-disease
#6
REVIEW
Tamara Alempijevic, Sanja Dragasevic, Simon Zec, Dragan Popovic, Tomica Milosavljevic
Obesity is a growing problem worldwide and disorders associated with excess body fat including the metabolic syndrome, type 2 diabetes mellitus (T2DM), cardiovascular disease and malignant neoplasms are becoming a major cause of morbidity and mortality. Over the past decade, a vast amount of research has furthered our understanding of non-alcoholic fatty liver disease; however, only recently pancreatic fat infiltration is coming to the forefront of investigation. Termed non-alcoholic fatty pancreas disease (NAFPD), it is becoming evident that it has important associations with other diseases of obesity...
January 9, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28065885/endoscopic-retrograde-cholangiopancreatography-with-ampullary-biopsy-vs-ercp-alone-a-matched-pairs-controlled-evaluation-of-outcomes-and-complications
#7
Sunil Dacha, Saurabh Chawla, Jai Eun Lee, Steven A Keilin, Qiang Cai, Field F Willingham
BACKGROUND AND AIMS: Biopsy of the ampulla of Vater may be performed to evaluate for ampullary adenomas, suspected ampullary tumors and immunohistological staining for autoimmune pancreatitis. Ampullary biopsies are commonly performed at the time of endoscopic retrograde cholangiopancreatography (ERCP). Due to the well-established complication rate following ERCP, the contribution of ampullary biopsy as a potential independent risk factor would require a controlled comparison. METHODS: A matched-pairs, case-control analysis was performed for patients undergoing ERCP with or without ampullary biopsy...
January 8, 2017: Gastroenterology Report
https://www.readbyqxmd.com/read/28059943/efficacy-safety-and-outcomes-of-endoscopic-retrograde-cholangiopancreatography-with-per-oral-pancreatoscopy-a-multicenter-experience
#8
Sheeva K Parbhu, Ali A Siddiqui, Megan Murphy, Arish Noor, Linda J Taylor, Alyssa Mills, Douglas G Adler
INTRODUCTION: Per-oral pancreatoscopy can be used for both evaluation and treatment of pancreatic duct stones during endoscopic retrograde cholangiopancreatography, evaluating and treating pancreatic duct strictures of indeterminate etiology, and visual inspection and direct biopsy of pancreatic duct mucosa for diagnosis of intraductal papillary mucinous neoplasm (IPMN). We aim to describe the efficacy, safety, and outcomes of pancreatoscopy in a large, multicenter series of patients...
January 5, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28059098/somatostatin-receptor-expression-related-to-tp53-and-rb1-alterations-in-pancreatic-and-extrapancreatic-neuroendocrine-neoplasms-with-a-ki67-index-above-20
#9
Björn Konukiewitz, Anna Melissa Schlitter, Moritz Jesinghaus, Dominik Pfister, Katja Steiger, Angela Segler, Abbas Agaimy, Bence Sipos, Giuseppe Zamboni, Wilko Weichert, Irene Esposito, Nicole Pfarr, Günter Klöppel
Somatostatin receptor 2A expression is a feature of well-differentiated neuroendocrine neoplasms and is important for their diagnosis and therapy. Little is known about somatostatin receptor 2A expression in poorly differentiated neuroendocrine neoplasms in relation to TP53 and RB1 status and how these features may contribute to the separation of well from poorly differentiated neuroendocrine neoplasms with a proliferation index above 20%. This study investigates the expression of somatostatin receptors, p53 and Rb1, and TP53 alterations in pancreatic and extrapancreatic well and poorly differentiated neuroendocrine neoplasms (Ki67-index >20%)...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28055239/the-evolving-role-of-pathology-in-new-developments-classification-terminology-and-diagnosis-of-pancreatobiliary-neoplasms
#10
Michelle D Reid, Melinda M Lewis, Field F Willingham, Volkan Adsay
Pancreatobiliary tract lesions are increasingly being discovered because of more sensitive imaging modalities. Magnetic resonance imaging has identified incidental pancreatic cysts in 13.5% of patients of progressively increasing age. Pancreatobiliary tissue is more accessible through endoscopic ultrasound and magnetic resonance imaging-guided biopsy procedures, and is now an integral part of pathologists' routine practice. Accordingly, several new tumor categories have been recently recognized, including intraductal tubulopapillary neoplasm, a new addition to tumoral intraepithelial neoplasms...
January 5, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28054945/somatic-genetic-variation-in-solid-pseudopapillary-tumor-of-the-pancreas-by-whole-exome-sequencing
#11
Meng Guo, Guopei Luo, Kaizhou Jin, Jiang Long, He Cheng, Yu Lu, Zhengshi Wang, Chao Yang, Jin Xu, Quanxing Ni, Xianjun Yu, Chen Liu
Solid pseudopapillary tumor of the pancreas (SPT) is a rare pancreatic disease with a unique clinical manifestation. Although CTNNB1 gene mutations had been universally reported, genetic variation profiles of SPT are largely unidentified. We conducted whole exome sequencing in nine SPT patients to probe the SPT-specific insertions and deletions (indels) and single nucleotide polymorphisms (SNPs). In total, 54 SNPs and 41 indels of prominent variations were demonstrated through parallel exome sequencing. We detected that CTNNB1 mutations presented throughout all patients studied (100%), and a higher count of SNPs was particularly detected in patients with older age, larger tumor, and metastatic disease...
January 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28054178/hemosuccus-pancreaticus-caused-by-a-mucinous-cystic-neoplasm-of-the-pancreas
#12
Yuri Matsumoto, Hiroshi Miyamoto, Akira Fukuya, Fumika Nakamura, Takahiro Goji, Shinji Kitamura, Tetsuo Kimura, Koichi Okamoto, Masahiro Sogabe, Naoki Muguruma, Mitsuo Shimada, Yoshimi Bando, Tetsuji Takayama
Hemosuccus pancreaticus is a gastrointestinal hemorrhage through the main pancreatic duct. Here, we report a rare case of hemosuccus pancreaticus due to a mucinous cystic neoplasm of the pancreas. A 62-year-old woman who had been followed for a branch duct intraductal papillary mucinous neoplasm visited our emergency room due to severe abdominal pain and bloody discharge. Computed tomography revealed that the pancreatic cyst increased the tension of the wall and a high-density area indicative of bleeding into the cyst was observed...
January 4, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28039645/totally-laparoscopic-or-robot-assisted-pancreaticoduodenectomy-versus-open-surgery-for-periampullary-neoplasms-separate-systematic-reviews-and-meta-analyses
#13
Sang Hyun Shin, Ye-Jee Kim, Ki Byung Song, Seong-Ryong Kim, Dae Wook Hwang, Jae Hoon Lee, Kwang-Min Park, Young-Joo Lee, Eunsung Jun, Song Cheol Kim
OBJECTIVE: To compare perioperative and oncologic outcomes of pure (totally) laparoscopic pancreaticoduodenectomy (TLPD) or robot-assisted pancreaticoduodenectomy (RAPD) with those of conventional open pancreaticoduodenectomy (OPD). METHODS: A systematic literature search was performed using PubMed, EMBASE, and Cochrane library databases. Studies comparing TLPD with OPD and RAPD with OPD were included; only original studies reporting more than 10 cases for each technique were included...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28036293/a-retrospective-study-of-nens-and-mir-224-promotes-apoptosis-of-bon-1-cells-by-targeting-pcsk9-inhibition
#14
Jian'an Bai, He Na, Xiumei Hua, Yaling Wei, Tian Ye, Yiqiang Zhang, Guo Jian, Weiwen Zeng, Lijun Yan, Qiyun Tang
Neuroendocrine neoplasms (NENs) represent relatively rare tumors. The lack of diagnostic, therapeutic method and prognostic factors makes them a challenge to us. We retrospectively reviewed the data of 205 NENs patients among which 157 cases were followed-up. Proprotein convertase subtilisin/kexin 9 (PCSK9), a regulator of low density lipoprotein cholesterol (LDL-C), was confirmed as a target gene of microRNA-224. We found an increased incidence of NENs from 2012 to 2015. Women were usually diagnosed at earlier stages than men (P < 0...
December 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/28030856/criteria-for-determining-malignancy-in-pancreatic-intraductal-papillary-mucinous-neoplasm-based-on-computed-tomography
#15
Peter Mönnings, Orlin Belyaev, Waldemar Uhl, Arnd Giese, Andrea Tannapfel, Odo Köster, Juris J Meier
INTRODUCTION: Determining the dignity of intraductal papillary mucinous neoplasms (IPMNs) by imaging procedures is challenging. Various CT-based criteria were evaluated. PATIENTS AND METHODS: Preoperative CT scans from 47 patients with IPMN were analyzed. Predefined criteria of malignancy were compared between patients with benign (bIPMN; n = 28) and malignant (mIPMN; n = 19) tumors, and a summation score was determined. RESULTS: Preoperative carbohydrate-antigen 19-9 levels were higher in patients with mIPMN (p = 0...
December 29, 2016: Digestion
https://www.readbyqxmd.com/read/28029673/histopathologic-analysis-of-pancreaticoduodenectomy-specimen
#16
R Dhakhwa, N Kafle
INTRODUCTION: Whipple's Pancreaticoduodenectomy has increasingly been used as an appropriate resectional procedure for tumors of the periampullary region which are pancreatic, periampullary, ampullary and biliary tumors. Our aim was to study the distribution and histopathologic features of these tumors and to examine local trends of periampullary neoplasms resected with a PD. METHODS: A descriptive study was conducted in the department of Pathology, Kathmandu Medical College Teaching Hospital from July 2013 to June 2016...
October 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28028341/solid-pseudopapillary-tumor-of-pancreas-a-lesser-known-entity-diagnosis-and-pitfalls-a-case-report
#17
Anshu Singh, Gyanendra Mohan, Sunanda Chaturvedi, Lalatendu Sarangi
Solid pseudopapillary tumor (SPT) is a rare pancreatic neoplasm with a reported incidence of 0.1% to 2.7% of all pancreatic tumors. Because radiological presentation of pancreatic tumors is quite overlapping, distinctive features in fine needle aspiration cytology (FNAC) helps in its diagnosis preoperatively. Being a low-grade malignancy presenting predominantly in young females, correct preoperative diagnosis minimizes the need of extensive surgery. SPT carries good prognosis without any adjuvant chemotherapy/radiotherapy in most cases, even in the presence of metastatic disease...
October 2016: Journal of Cytology
https://www.readbyqxmd.com/read/28027897/relevance-of-dihydropyrimidine-dehydrogenase-and-thymidylate-synthase-in-patients-with-pancreatic-neuroendocrine-neoplasms-treated-with-5-fu-based-chemotherapy
#18
S Krug, M Boch, W Nimphius, T M Gress, P Michl, A Rinke
BACKGROUND: Chemotherapy with 5-FU and Streptozotocin (STZ) is recommended as first-line treatment in patients with metastatic pancreatic neuroendocrine neoplasms (PNEN). However, data about biomarkers involved in the 5-FU metabolism to predict response are still limited. OBJECTIVES: Evaluation of clinicopathological features and potential predictive and prognostic markers of patients with PNEN treated with 5-FU based regimens. PATIENTS AND METHODS: We retrospectively analyzed 41 patients with PNEN who were treated at the University Hospital Marburg between 2000 and 2013...
December 22, 2016: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28011509/technical-feasibility-and-oncological-legitimacy-of-enucleation-of-intraductal-papillary-mucinous-neoplasm-located-at-the-pancreatic-head-or-uncinate-process
#19
Yuji Soejima, Takeo Toshima, Takashi Motomura, Tomoyuki Yokota, Kouji Joko, Yumi Oshiro, Ikuo Takahashi, Takashi Nishizaki, Yoshihiko Maehara
BACKGROUND: Surgical indications and strategies for branch duct (BD)-intraductal papillary mucinous neoplasm (IPMN) at the pancreatic head (PH) are controversial issues. We investigated the technical feasibility and oncological legitimacy of enucleation for IPMN of the PH. PATIENTS AND METHODS: The clinicopathological parameters of 11 patients with IPMN who underwent conventional pancreaticoduodenectomy (PD, n=7) or enucleation (n=4) during the same period were evaluated...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/28008994/common-germline-variants-within-the-cdkn2a-2b-region-affect-risk-of-pancreatic-neuroendocrine-tumors
#20
Daniele Campa, Gabriele Capurso, Manuela Pastore, Renata Talar-Wojnarowska, Anna Caterina Milanetto, Luca Landoni, Evaristo Maiello, Rita T Lawlor, Ewa Malecka-Panas, Niccola Funel, Maria Gazouli, Antonio De Bonis, Harald Klüter, Maria Rinzivillo, Gianfranco Delle Fave, Thilo Hackert, Stefano Landi, Peter Bugert, Franco Bambi, Livia Archibugi, Aldo Scarpa, Verena Katzke, Christos Dervenis, Valbona Liço, Sara Furlanello, Oliver Strobel, Francesca Tavano, Daniela Basso, Rudolf Kaaks, Claudio Pasquali, Manuel Gentiluomo, Cosmeri Rizzato, Federico Canzian
Pancreatic neuroendocrine tumors (PNETs) are heterogeneous neoplasms which represent only 2% of all pancreatic neoplasms by incidence, but 10% by prevalence. Genetic risk factors could have an important role in the disease aetiology, however only a small number of case control studies have been performed yet. To further our knowledge, we genotyped 13 SNPs belonging to the pleiotropic CDKN2A/B gene region in 320 PNET cases and 4436 controls, the largest study on the disease so far. We observed a statistically significant association between the homozygotes for the minor allele of the rs2518719 SNP and an increased risk of developing PNET (ORhom = 2...
December 23, 2016: Scientific Reports
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