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https://www.readbyqxmd.com/read/28550497/clinicopathological-features-of-intraductal-papillary-neoplasms-of-the-bile-duct-a-comparison-with-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-with-reference-to-subtypes
#1
Yuki Fukumura, Yasuni Nakanuma, Yuko Kakuda, Masaru Takase, Takashi Yao
Intraductal papillary epithelial neoplasms of the pancreatobiliary system (intraductal papillary neoplasm of the bile duct (IPNB) and intraductal papillary mucinous neoplasm (IPMN)) seem to share many clinicopathological features; however, IPNB has not been fully characterized. In order to understand the clinicopathological/immunohistochemical features of IPNB better, we compared 52 cases of IPNB with 42 cases of IPMNs with mural nodules. The IPNB cases were divided into two groups according to their histological similarity and according to five key histological findings...
May 26, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28547985/renal-cell-carcinoma-metastasizing-to-pancreatic-neuroendocrine-neoplasm-the-second-case-described-in-the-world-literature
#2
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
#3
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/28537566/intramural-gastric-hematoma-imitating-a-gastrointestinal-stromal-tumor-case-report-and-literature-review
#4
Arkadiusz Spychała, Piotr Nowaczyk, Aleksandra Budnicka, Ewa Antoniewicz, Dawid Murawa
The article presents a case report of a patient with an intramural gastric hematoma. Diagnostic examinations were suggestive of a suspected gastrointestinal stromal tumor Normal image was observed in gastroscopic examination while abdominal CT scan revealed a nodular lesion along the greater curvature of the stomach extending from the posterior wall and adjoining the pancreas and the spleen. The patient was qualified for surgical treatment. Laparotomy was performed followed by total gastric resection and Roux-en-Y reconstruction of the gastrointestinal tract...
April 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28536860/line-1-methylation-level-and-prognosis-in-pancreas-cancer-pyrosequencing-technology-and-literature-review
#5
Kensuke Yamamura, Keisuke Kosumi, Yoshifumi Baba, Kazuto Harada, Feng Gao, Xiaobo Zhang, Lei Zhou, Yuki Kitano, Kota Arima, Takayoshi Kaida, Hideaki Takeyama, Takaaki Higashi, Katsunori Imai, Daisuke Hashimoto, Akira Chikamoto, Xiaodong Tan, Hideo Baba
PURPOSE: Global DNA hypomethylation plays an important role in genomic instability and carcinogenesis. The long interspersed nucleotide element-1 (LINE-1) methylation level is a good surrogate marker of the global DNA methylation level. Previously, we demonstrated a strong relationship between LINE-1 hypomethylation and poor prognosis in certain cancers. However, the relationship between the LINE-1 methylation level and the clinical outcome of pancreatic cancer (PC) remains unclear. METHODS: We used a pyrosequencing assay to measure LINE-1 methylation levels in 126 samples of resected PC and evaluated the prognostic value of the LINE-1 methylation level...
May 23, 2017: Surgery Today
https://www.readbyqxmd.com/read/28533666/comparison-of-imaging-based-and-pathological-dimensions-in-pancreatic-neuroendocrine-tumors
#6
Salvatore Paiella, Harmony Impellizzeri, Elisabetta Zanolin, Giovanni Marchegiani, Marco Miotto, Anna Malpaga, Riccardo De Robertis, Mirko D'Onofrio, Borislav Rusev, Paola Capelli, Sara Cingarlini, Giovanni Butturini, Maria Vittoria Davì, Antonio Amodio, Claudio Bassi, Aldo Scarpa, Roberto Salvia, Luca Landoni
AIM: To establish the ability of magnetic resonance (MR) and computer tomography (CT) to predict pathologic dimensions of pancreatic neuroendocrine tumors (PanNET) in a caseload of a tertiary referral center. METHODS: Patients submitted to surgery for PanNET at the Surgical Unit of the Pancreas Institute with at least 1 preoperative imaging examination (MR or CT scan) from January 2005 to December 2015 were included and data retrospectively collected. Exclusion criteria were: multifocal lesions, genetic syndromes, microadenomas or mixed tumors, metastatic disease and neoadjuvant therapy...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28529742/intraductal-tubulopapillary-neoplasm-accompanied-by-invasive-carcinoma-of-the-pancreas-a-case-report-and-review-of-the-literature
#7
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/28529740/copy-number-variation-and-protein-expression-of-dot1l-in-pancreatic-adenocarcinoma-as-a-potential-drug-target
#8
Heike Loeser, Dirk Waldschmidt, Fabian Kuetting, Carina Heydt, Thomas Zander, Patrick Plum, Hakan Alakus, Reinhard Buettner, Alexander Quaas
Adenocarcinoma of the pancreas has a poor prognosis. At present, no relevant personalized targets have been identified. Sequencing studies have implicated gene alterations of disruptor of telomeric silencing 1 like histone lysine methyltransferase (DOT1L) in pancreatic adenocarcinoma. DOT1L is part of the histone modification system and catalyzes methylation of H3K79, which is crucial in cell signaling and DNA damage repair. DOT1L is considered to be a target of therapy in mixed lineage leukemia gene-deficient leukemia cases and a potential target in breast carcinoma...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28527194/biodistribution-and-excretion-of-colloidal-gold-nanoparticles-after-intravenous-injection-effects-of-particle-size
#9
Issei Takeuchi, Sho Nobata, Naoto Oiri, Keishiro Tomoda, Kimiko Makino
BACKGROUND: Inorganic gold nanoparticles (NPs) have a huge potential in targeted drug delivery. Simple preparation and surface modification procedure with their special physicochemical properties of gold NPs attract their use such as tumor targeting and the detection of cancerous cell. OBJECTIVE: Various studies were reported, however, details of biodistribution profile of gold NPs were not enough evaluated. We have studied biodistribution profile of gold NPs having various particle sizes (20, 50 and 100 nm)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28523328/duodenal-gastrointestinal-stromal-tumor-presenting-as-pancreatic-head-mass-a-case-report
#10
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/28522995/dysbiosis-of-intestinal-microbiota-and-decreased-antimicrobial-peptide-level-in-paneth-cells-during-hypertriglyceridemia-related-acute-necrotizing-pancreatitis-in-rats
#11
Chunlan Huang, Jing Chen, Jingjing Wang, Hui Zhou, Yingying Lu, Lihong Lou, Junyuan Zheng, Ling Tian, Xingpeng Wang, Zhongwei Cao, Yue Zeng
Hypertriglyceridemia (HTG) aggravates the course of acute pancreatitis (AP). Intestinal barrier dysfunction is implicated in the pathogenesis of AP during which dysbiosis of intestinal microbiota contributes to the dysfunction in intestinal barrier. However, few studies focus on the changes in intestine during HTG-related acute necrotizing pancreatitis (ANP). Here, we investigated the changes in intestinal microbiota and Paneth cell antimicrobial peptides (AMPs) in HTG-related ANP (HANP) in rats. Rats fed a high-fat diet to induce HTG and ANP was induced by retrograde injection of 3...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28522787/surgical-treatment-of-pancreatic-cystic-tumors
#12
Beata Jabłońska, Łukasz Braszczok, Weronika Szczęsny-Karczewska, Beata Dubiel-Braszczok, Paweł Lampe
The aim of this study was to assess short-term outcomes of surgical treatment of pancreatic cystic tumors (PCTs). MATERIAL AND METHODS: We retrospectively reviewed medical records of 46 patients (31 women and 15 men) who had undergone surgery for pancreatic cystic tumors in our department. RESULTS: Pancreatic cystic tumors were located within the pancreatic head (21), body (11), tail (13), and whole pancreas (1). The following surgical procedures were performed: pancreatoduodenectomy (20), central pancreatectomy (9), distal pancreatectomy (3), distal pancreatectomy with splenectomy (3), distal extended pancreatectomy with splenectomy (2), total pancreatectomy (1), duodenum preserving pancreatic head resection (1), local tumor resection (4), and other procedures (2)...
February 28, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28521407/clinicopathological-implications-of-nqo1-overexpression-in-the-prognosis-of-pancreatic-adenocarcinoma
#13
Meiying Ji, Aihua Jin, Jie Sun, Xuelian Cui, Yang Yang, Liyan Chen, Zhenhua Lin
Nicotinamide adenine dinucleotide phosphate: quinone oxidoreductase 1 (NQO1) protects cells from oxidative damage. NQO1 has been reported to be upregulated in numerous solid tumors, suggesting a role in carcinogenesis and tumor progression. The present study attempted to investigate the clinical prognostic significance of NQO1 overexpression in pancreatic ductal adenocarcinoma (PDAC). A total of 181 tissue specimens were studied, including 126 PDAC and 55 normal pancreas specimens, which were selected for immunohistochemical staining of NQO1 protein...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28520652/a-systematic-review-and-meta-analysis-of-laparoscopic-and-open-distal-pancreatectomy-of-nonductal-adenocarcinomatous-pancreatic-tumor-ndacpt-in-the-pancreatic-body-and-tail
#14
Xiaojiang Yi, Sile Chen, Wei Wang, Liaonan Zou, Dechang Diao, Yansheng Zheng, Yaobin He, Hongming Li, Lijie Luo, Wenjun Xiong, Jin Wan
BACKGROUND: Currently, laparoscopic distal pancreatectomy is regarded as a safe and effective surgical approach for lesions in the body and tail of the pancreas. This review examined the evidence from published data of comparative studies of laparoscopic versus open distal pancreatectomy of nonductal adenocarcinomatous pancreatic tumor in pancreatic body and tail. METHODS: A systematic review of the studies comparing laparoscopic and open distal pancreatectomy was conducted...
May 17, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28515932/single-stage-laparoscopic-adrenalectomy-for-pheochromocytoma-and-enucleation-of-a-pancreatic-neuroendocrine-tumor-in-von-hippel-lindau-disease-a-case-report
#15
Marco Casaccia, Simona Macina, Rosario Fornaro
Von Hippel-Lindau (VHL) disease is an inherited syndrome with autosomal-dominant transmission, characterized by central nervous system and retinal hemangioblastomas, visceral cysts and tumors. Optimal surgical treatment, including its timing, remains a controversial topic. The present study reports the case of a 67-year-old female patient with adrenal and pancreatic manifestations of VHL. A laparoscopic cortex-sparing left adrenalectomy for a 4-cm pheochromocytoma and pancreatic enucleation for pancreatic polypeptidoma of the pancreas tail were performed during the same operative procedure...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28512414/an-intra-abdominal-desmoid-tumor-embedded-in-the-pancreas-preoperatively-diagnosed-as-an-extragastric-growing-gastrointestinal-stromal-tumor
#16
Mari Mizuno, Yoshiaki Kawaguchi, Aya Kawanishi, Yohei Kawashima, Atsuko Maruno, Masami Ogawa, Mifuji Tomioku, Daisuke Furukawa, Kazuhito Nabeshima, Kenji Nakamura, Kenichi Hirabayashi, Tetsuya Mine
A 45-year-old woman was found to have a pancreatic tumor by abdominal ultrasound performed for a medical check-up. Abdominal contrast-enhanced computed tomography showed a hypovascular tumor measuring 30 mm in diameter in the pancreatic tail. Endoscopic ultrasound-guided fine needle aspiration was performed. An extragastric growing gastrointestinal stromal tumor was thereby diagnosed preoperatively, and surgical resection was planned. Laparoscopic surgery was attempted but conversion to open surgery was necessitated by extensive adhesions, and distal pancreatectomy, splenectomy, and partial gastrectomy were performed...
January 2017: Case Reports in Oncology
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/28508950/malignancy-as-a-comorbidity-in-rheumatic-diseases-a-retrospective-hospital-based-study
#18
Hai-Long Wang, Yong-Ming Zhou, Guang-Zhao Zhu, Zhu Yang, Bao-Jin Hua
Patients with Rheumatic diseases (RDs) are at an increased risk of malignancies compared with the general population. The aim of this study was to examine the relative frequency of several cancers in a single homogeneous cohort of patients with different RDs. Patients diagnosed with rheumatoid arthritis (RA), Ankylosing spondylitis (AS), Sjögren's syndrome (SS), systemic lupus erythematosus (SLE), systemic sclerosis (SSc), dermatomyositis (DM), or polymyositis were included. Out of 3982 adult residents admitted to the division of rheumatology, 61 malignancies were observed...
May 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28504695/epigenetic-pathway-inhibitors-represent-potential-drugs-for-treating-pancreatic-and-bronchial-neuroendocrine-tumors
#19
K E Lines, M Stevenson, P Filippakopoulos, S Müller, H E Lockstone, B Wright, S Grozinsky-Glasberg, A B Grossman, S Knapp, D Buck, C Bountra, R V Thakker
Cancer is associated with alterations in epigenetic mechanisms such as histone modifications and methylation of DNA, and inhibitors targeting epigenetic mechanisms represent a novel class of anti-cancer drugs. Neuroendocrine tumors (NETs) of the pancreas (PNETs) and bronchus (BNETs), which may have 5-year survivals of <50% and as low as 5%, respectively, represent targets for such drugs, as >40% of PNETs and ~35% of BNETs have mutations of the multiple endocrine neoplasia type 1 (MEN1) gene, which encodes menin that modifies histones by interacting with histone methyltransferases...
May 15, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28501471/comparison-of-endoscopic-ultrasound-guided-fine-needle-aspiration-and-pet-ct-in-preoperative-diagnosis-of-pancreatic-adenocarcinoma
#20
Jin-Ping Lai, Yong Yue, Wei Zhang, Yihua Zhou, David Frishberg, Laith H Jamil, James M Mirocha, Maha Guindi, Bonnie Balzer, Shikha Bose, Dengfeng Cao, Simon Lo, Xuemo Fan, Joanne K Rutgers
BACKGROUND: Endoscopic ultrasound guided fine needle aspiration (EUS-FNA) is the procedure of choice to investigate and sample pancreatic masses for the preoperative diagnosis of pancreatic ductal adenocarcinoma (PDAC). The role of (18)fluoro-deoxyglucose positron emission tomography/computed tomography (PET/CT) in PDAC is debated. This study evaluates the role of EUS-FNA as compared to PET/CT in the preoperative evaluation of PDAC. METHODS: Preoperative evaluation by PET/CT and EUS-FNA was performed on 25 patients with pancreatic solid lesions, who underwent a subsequent Whipple procedure or partial pancreatic resection...
April 13, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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