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Pancreatic tumor

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https://www.readbyqxmd.com/read/29454229/pancreatic-cancer-presenting-as-colonic-disease-a-rare-case-report
#1
Sara Tavares Nogueira, Bruno Lima Pinto, Eduardo Faria Silva, Hermano Anjos Garcia, Francisco Carneiro
INTRODUCTION: Pancreatic cancer is the fourth major cause of cancer-related deaths. About 50% of the patients are diagnosed with advanced disease. Metastatic disease to the colon is a very rare entity with only 5 cases described in english literature. CASE PRESENTATION: Male, 60 years-old, presents to a surgical consult with the diagnosis of an adenocarcinoma of the sigmoid colon. The physical exam revealed a periumbilical nodule with suspicious features. The staging CT-scan showed a mass in the tail of the pancreas involving the spleen and left kidney, thickening of the sigmoid colon, multiple mesenteric masses and trabecular changes in the ischium, suggesting metastatic disease...
February 9, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29453972/artemin-regulates-cxcr4-expression-to-induce-migration-and-invasion-in-pancreatic-cancer-cells-through-activation-of-nf-%C3%AE%C2%BAb-signaling
#2
Juan Wang, Hui Wang, Jun Cai, Shaoxia Du, Beibei Xin, Wei Wei, Ti Zhang, Xiaohong Shen
Pancreatic ductal adenocarcinoma (PDAC) is the most lethal human malignant tumor because of the early onset of local invasion and distant metastasis. Perineural invasion is a prominent characteristic of pancreatic adenocarcinoma, which is a multifactorial process that involves various signaling molecules from different signaling pathways. The glial cell line-derived neurotrophic factor family of ligands was reported to be involved in perineural invasion in pancreatic cancer. Artemin is one member of the glial cell line-derived neurotrophic factor family of ligands...
February 14, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29452754/insulinoma-a-retrospective-study-analyzing-the-differences-between-benign-and-malignant-tumors
#3
A B Câmara-de-Souza, M T K Toyoshima, M L Giannella, D S Freire, C P Camacho, D M Lorenço, M S Rocha, T Bacchella, R Jureidini, M C C Machado, M Q Almeida, M A A Pereira
BACKGROUND/OBJECTIVES: Insulinoma is a rare pancreatic tumor and, usually, a benign disease but can be a malignant one and, sometimes, a highly aggressive disease. The aim of this study was to determine differences between benign and malignant tumors. METHODS: Retrospective study of 103 patients with insulinoma treated in a tertiary center. It was analyzed demographic, clinical, laboratory, localization and histologic analysis of tumor and follow up data of subjects in order to identify differences between individuals benign and malignant disease...
February 1, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29452455/complex-hur-function-in-pancreatic-cancer-cells
#4
REVIEW
Jonathan R Brody, Dan A Dixon
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with dismal patient outcomes. The underlying core genetic drivers of disease have been identified in human tumor specimens and described in genetically engineered mouse models. These genetic drivers of PDAC include KRAS signaling, TP53 mutations, and genetic loss of the SMAD4 tumor suppressor protein. Beyond the known mutational landscape of PDAC genomes, alternative disrupted targets that extend beyond conventional genetic mutations have been elusive and understudied in the context of PDAC cell therapeutic resistance and survival...
February 16, 2018: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29451897/selective-identification-of-somatic-mutations-in-pancreatic-cancer-cells-through-a-combination-of-next-generation-sequencing-of-plasma-dna-using-molecular-barcodes-and-a-bioinformatic-variant-filter
#5
Yoji Kukita, Kazuyoshi Ohkawa, Ryoji Takada, Hiroyuki Uehara, Kazuhiro Katayama, Kikuya Kato
The accuracy of next-generation sequencing (NGS) for detecting tumor-specific mutations in plasma DNA is hindered by errors introduced during PCR/sequencing, base substitutions caused by DNA damage, and pre-existing mutations in normal cells that are present at a low frequency. Here, we performed NGS of genes related to pancreatic cancer (comprising 2.8 kb of genomic DNA) in plasma DNA (average 4.5 ng) using molecular barcodes. The average number of sequenced molecules was 900, and the sequencing depth per molecule was 100 or more...
2018: PloS One
https://www.readbyqxmd.com/read/29451738/well-differentiated-grade-3-pancreatic-neuroendocrine-tumors-compared-with-related-neoplasms-a-morphologic-study
#6
Carlie S Sigel, Vitor Werneck Krauss Silva, Michelle D Reid, David Chhieng, Olca Basturk, Keith M Sigel, Tanisha D Daniel, David S Klimstra, Laura H Tang
BACKGROUND: Pancreatic neuroendocrine neoplasms with a Ki-67 labeling index greater than 20% were reclassified in 2017 by the World Health Organization into well differentiated (WD) and poorly differentiated grade 3 neuroendocrine carcinoma (NEC). The authors describe the cytologic features of grade 3 WD pancreatic neuroendocrine neoplasms compared with grade 2 neoplasms and NEC. METHODS: Fine-needle aspirates from 65 pancreatic neuroendocrine neoplasms were reviewed, and their cytomorphologic features were compared across grade 2, WD grade 3, and PD small cell type (PD-S), large cell type (PD-L), and type not otherwise specified (PD-NOS) neoplasms...
February 16, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29450880/a-review-of-cutaneous-manifestations-within-glucagonoma-syndrome-necrolytic-migratory-erythema
#7
REVIEW
Starling Tolliver, Jaqueline Graham, Benjamin H Kaffenberger
Necrolytic migratory erythema (NME) is a rare skin disorder that is a cutaneous manifestation of the glucagonoma syndrome. It presents with annular eruptions of migrating erythematous papules and plaques with superficial epidermal necrosis, central flaccid bullae, and crusted erosions located primarily in the intertriginous areas. Treatment with the long-acting somatostatin analog Octreotide is a potential therapy to help ameliorate skin symptoms. We present a case of a patient with a 1-year history of a pancreatic glucagonoma that developed an ulcerated, plaque-like, weeping rash over multiple areas of their body despite current treatment with Octreotide and stable pancreatic tumor staging...
February 16, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29448303/nomogram-predicting-the-risk-of-recurrence-after-curative-intent-resection-of-primary-non-metastatic-gastrointestinal-neuroendocrine-tumors-an-analysis-of-the-u-s-neuroendocrine-tumor-study-group
#8
Katiuscha Merath, Fabio Bagante, Eliza W Beal, Alexandra G Lopez-Aguiar, George Poultsides, Eleftherios Makris, Flavio Rocha, Zaheer Kanji, Sharon Weber, Alexander Fisher, Ryan Fields, Bradley A Krasnick, Kamran Idrees, Paula M Smith, Cliff Cho, Megan Beems, Carl R Schmidt, Mary Dillhoff, Shishir K Maithel, Timothy M Pawlik
BACKGROUND: The risk of recurrence after resection of non-metastatic gastro-entero-pancreatic neuroendocrine tumors (GEP-NET) is poorly defined. We developed/validated a nomogram to predict risk of recurrence after curative-intent resection. METHODS: A training set to develop the nomogram and test set for validation were identified. The predictive ability of the nomogram was assessed using c-indices. RESULTS: Among 1477 patients, 673 (46%) were included in the training set and 804 (54%) in y the test set...
February 15, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29446319/dual-energy-ct-iodine-maps-as-an-alternative-quantitative-imaging-biomarker-to-abdominal-ct-perfusion-determination-of-appropriate-trigger-delays-for-acquisition-using-bolus-tracking
#9
Stephan Skornitzke, Franziska Fritz, Philipp Mayer, Marco Koell, Jens Hansen, Gregor Pahn, Thilo Hackert, Hans-Ulrich Kauczor, Wolfram Stiller
OBJECTIVE: Quantitative evaluation of different bolus-tracking trigger delays for acquisition of dual-energy (DE) computed tomography (CT) iodine maps as an alternative to CT perfusion. METHODS: Prior to this retrospective analysis of prospectively acquired data, DECT perfusion sequences were dynamically acquired in 22 patients with pancreatic carcinoma using dual-source CT at 80/140kV p with tin filtration. After deformable motion-correction, perfusion maps of blood flow (BF) were calculated from 80kVp image series of DECT, and iodine maps were calculated for each of the 34 DECT acquisitions per patient...
February 15, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29446162/eus-guided-transenteric-pancreatic-duct-drainage-without-cautery-for-obstructive-pancreatitis-due-to-ampullary-carcinoma
#10
Takeshi Miyata, Ken Kamata, Mamoru Takenaka
Endoscopic ultrasound-guided pancreatic duct drainage (EUS-PD) has been described as an alternative to surgical procedures [1-5]. The patient was a 64-year-old woman with resectable ampullary carcinoma. She was scheduled to undergo pancreatoduodenectomy for the carcinoma; however, obstructive pancreatitis developed. Abdominal computed tomography (CT) revealed dilation of the main pancreatic duct from the tail side of the tumor. Trans-papillary pancreatic duct drainage was attempted; however, the guidewire could not be inserted over the tumor (Figure 1A)...
February 15, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29446119/pancreaticoduodenal-arterial-arcades-their-dominance-and-variations-their-potential-clinical-relevance
#11
András Szuák, Károly Németh, Csaba Korom, Endre Gáti, Kinga Karlinger, László Harsányi, Ágnes Nemeskéri
INTRODUCTION: The complex arterial system makes pancreatic interventions technically challenging for surgeons, and interventional radiologists. The arterial variants may alter tumor resecability, and cause complications in arterial embolization. International data on pancreatic blood supply are variable; therefore, we aimed to determine the frequency of variants of pancreaticoduodenal arterial arcades. MATERIALS AND METHODS: Arteries of human abdominal organ complexes (50) were injected with resin mixture, and then corroded...
February 15, 2018: Clinical Anatomy
https://www.readbyqxmd.com/read/29444581/-the-effect-of-circulating-tumor-cells-on-the-survival-of-patients-with-pancreatic-cancer-5-year-results
#12
L Bébarová, P Skalický, J Srovnal, A Prokopová, J Zapletalová, M Hajdúch, M Loveček
INTRODUCTION: Pancreatic cancer (PDAC) is one of the most aggressive malignancies. Its incidence increases worldwide and, despite the developments in cancer research, mortality rates have not decreased. Poor prognosis of the disease is due to many factors, mainly late diagnosis. Distant metastases and peritoneal carcinomatosis are caused by hematogenous and lymphogenous spreading of the tumorous cells. One of the factors that may influence patient survival are so-called circulating tumor cells (CTCs)...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29443760/resection-of-benign-side-branch-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-is-long-term-follow-up-indicated-a-case-report-and-review-of-the-literature
#13
Stefan Fritz, Regina Küper-Steffen, Katharina Feilhauer, Christoph M Sommer, Götz M Richter, René Hennig, Jörg Köninger
RATIONALE: Intraductal papillary mucinous neoplasms of the pancreas (IPMNs) are benign cystic tumors with a relevant risk of malignant transformation over time. Currently, follow-up after surgical resection of benign IPMNs remains controversial. PATIENT CONCERNS: This is a case report of a 68-year-old male who underwent pancreatic head resection for a multicystic side-branch IPMN with low-grade epithelial dysplasia in March 2009 at the Katharinenhospital Stuttgart, Germany...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29443735/identification-of-gene-expression-models-for-laryngeal-squamous-cell-carcinoma-using-co-expression-network-analysis
#14
Chun-Wei Yang, Shu-Fang Wang, Xiang-Li Yang, Lin Wang, Lin Niu, Ji-Xiang Liu
One of the most common head and neck cancers is laryngeal squamous cell carcinoma (LSCC). LSCC exhibits high mortality rates and has a poor prognosis. The molecular mechanisms leading to the development and progression of LSCC are not entirely clear despite genetic and therapeutic advances and increased survival rates. In this study, a total of 116 differentially expressed genes (DEGs), including 11 upregulated genes and 105 downregulated genes, were screened from LSCC samples and compared with adjacent noncancerous...
February 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29442468/the-role-of-pancreatic-polypeptide-in-pancreatic-diseases
#15
REVIEW
Mariola Śliwińska-Mossoń, Grzegorz Marek, Halina Milnerowicz
The aim of this study was to review the diagnostic significance of pancreatic polypeptide (PP) in pancreatic diseases. PP may play a significant role in monitoring the development of the disease and the patient's healing process, particularly after the removal of a portion of the pancreas. Determining PP in acute pancreatitis is quite controversial. At the 1st stage of severe pancreatic damage, there is excessive PP release followed by its fall. In patients with chronic pancreatitis, a significant decrease in PP secretion was found in the presence of a food stimulant...
December 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29442219/a-case-of-mixed-adenoneuroendocrine-carcinoma-of-the-pancreas-mimicking-intraductal-papillary-mucinous-carcinoma
#16
Hideki Mori, Keiji Hanada, Tomoyuki Minami, Shigeki Yano, Motomitsu Fukuhara, Hirotsugu Maruyama, Akinori Shimizu, Naomichi Hirano, Fumiaki Hino, Hironobu Amano, Shuji Yonehara
A previously healthy 52-year-old man was referred to our hospital for further evaluation of main pancreatic duct dilatation. The preoperative work-up was consistent with intraductal papillary mucinous carcinoma (IPMC) derived from a mixed type intraductal papillary mucinous neoplasm (IPMN), because multilocular cysts with enhancing thickened pancreatic head walls and dilated pancreatic ducts lined with dysplastic mucinous epithelium, with papillary proliferation from the pancreatic body to the tail, were observed; in addition, the pancreatic juice cytology was class V, which is suggestive of adenocarcinoma...
February 13, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29442211/circulating-tumor-cells-predict-occult-metastatic-disease-and-prognosis-in-pancreatic-cancer
#17
Colin M Court, Jacob S Ankeny, Shonan Sho, Paul Winograd, Shuang Hou, Min Song, Zev A Wainberg, Mark D Girgis, Thomas G Graeber, Vatche G Agopian, Hsian-Rong Tseng, James S Tomlinson
BACKGROUND: Occult metastatic tumors, below imaging thresholds, are a limitation of staging systems that rely on cross-sectional imaging alone and are a cause of the routine understaging of pancreatic ductal adenocarcinomas (PDACs). We investigated circulating tumor cells (CTCs) as a preoperative predictor of occult metastatic disease and as a prognostic biomarker for PDAC patients. EXPERIMENTAL DESIGN: A total of 126 patients (100 with cancer, 26 with benign disease) were enrolled in our study and CTCs were identified and enumerated from 4 mL of venous blood using the microfluidic NanoVelcro assay...
February 13, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29440631/inhibition-of-kras-dependent-lung-cancer-cell-growth-by-deltarasin-blockage-of-autophagy-increases-its-cytotoxicity
#18
Elaine Lai Han Leung, Lian Xiang Luo, Zhong Qiu Liu, Vincent Kam Wai Wong, Lin Lin Lu, Ying Xie, Ni Zhang, Yuan Qing Qu, Xing Xing Fan, Ying Li, Min Huang, Dai Kai Xiao, Jun Huang, Yan Ling Zhou, Jian Xing He, Jian Ding, Xiao Jun Yao, David C Ward, Liang Liu
Deltarasin is a recently identified small molecule that can inhibit KRAS-PDEδ interactions by binding to a hydrophobic pocket on PDEδ, resulting in the impairment of cell growth, KRAS activity, and RAS/RAF signaling in human pancreatic ductal adenocarcinoma cell lines. Since KRAS mutations are the most common oncogene mutations in lung adenocarcinomas, implicated in over 30% of all lung cancer cases, we examined the ability of deltarasin to inhibit KRAS-dependent lung cancer cell growth. Here, for the first time, we document that deltarasin produces both apoptosis and autophagy in KRAS-dependent lung cancer cells in vitro and inhibits lung tumor growth in vivo...
February 13, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29439880/suppression-of-inducible-nitric-oxide-synthase-and-tumor-necrosis-factor-alpha-level-by-lycopene-is-comparable-to-methylprednisolone-in-acute-pancreatitis
#19
Nahla E El-Ashmawy, Naglaa F Khedr, Hoda A El-Bahrawy, Omnia B Hamada
BACKGROUND: Oxidative stress and inflammation may play a key role in the pathogenesis of acute pancreatitis (AP). Lycopene, a natural carotenoid, has antioxidant scavenger capacity and inhibits inflammation in many experimental models. AIM: The study was designed to investigate whether lycopene can ameliorate l-arginine-induced pancreatitis in rats and to elucidate the underlying molecular mechanisms of these effects. METHODS: Forty-eight adult male Wistar rats were divided into: control group (vehicle, orally, 10 days), AP group (3 g/kg l-arginine, single i...
February 2, 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29439298/a-rare-cause-of-pancreatic-head-mass-metastatic-prostate-cancer-a-case-report-and-review-of-literature
#20
Khalil Aloreidi, Robert T Lapp
Metastases to the pancreas account for less than 5 percent of all malignancies affecting the pancreas. The most common secondary malignancy of the pancreas is renal cell carcinoma. We report a patient presented with abdominal pain and weight loss. Computed tomography (CT) imaging showed pancreatic head mass. Biopsy from the mass showed prostate metastasis after 13 years from radical prostatectomy and Leuprolide therapy. This case demonstrates a rare location for prostate metastasis which was the pancreas. To our knowledge there are only six cases reported in literature...
January 2018: South Dakota Medicine: the Journal of the South Dakota State Medical Association
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