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Pancreatic neoplasms

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https://www.readbyqxmd.com/read/29339034/extracellular-matrix-proteins-and-carcinoembryonic-antigen-related-cell-adhesion-molecules-characterize-pancreatic-duct-fluid-exosomes-in-patients-with-pancreatic%C3%A2-cancer
#1
Jian Zheng, Jonathan M Hernandez, Alexandre Doussot, Linda Bojmar, Constantinos P Zambirinis, Bruno Costa-Silva, Elke J A H van Beek, Milica T Mark, Henrik Molina, Gokce Askan, Olca Basturk, Mithat Gonen, T Peter Kingham, Peter J Allen, Michael I D'Angelica, Ronald P DeMatteo, David Lyden, William R Jarnagin
BACKGROUND: Exosomes are nanovesicles that have been shown to mediate carcinogenesis in pancreatic ductal adenocarcinoma (PDAC). Given the direct communication of pancreatic duct fluid with the tumor and its relative accessibility, we aimed to determine the feasibility of isolating and characterizing exosomes from pancreatic duct fluid. METHODS: Pancreatic duct fluid was collected from 26 patients with PDAC (n = 13), intraductal papillary mucinous neoplasm (IPMN) (n = 8) and other benign pancreatic diseases (n = 5) at resection...
January 12, 2018: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/29337154/intraductal-papillary-mucinous-neoplasm-as-the-focus-for-early-detection-of-pancreatic-cancer
#2
EDITORIAL
Masao Tanaka
No abstract text is available yet for this article.
January 11, 2018: Gastroenterology
https://www.readbyqxmd.com/read/29335928/ct-imaging-of-primary-pancreatic-lymphoma-experience-from-three-referral-centres-for-pancreatic-diseases
#3
Enrico Boninsegna, Giulia A Zamboni, Davide Facchinelli, Charikleia Triantopoulou, Sofia Gourtsoyianni, Maria Chiara Ambrosetti, Dino Veneri, Achille Ambrosetti, Roberto Pozzi Mucelli
PURPOSE: To describe CT characteristics of primary pancreatic lymphoma (PPL), a rare disease with features in common with adenocarcinoma. MATERIALS AND METHODS: Fourteen patients were enrolled. CT: unenhanced scan, contrast-enhanced pancreatic and venous phases. Image analysis: tumour location; peri-pancreatic vessel encasement; necrosis; enlarged lymph nodes; fat stranding; enlarged bile duct and pancreatic duct; neoplasm longest dimension, volume and density. RESULTS: Histopathological diagnoses: follicular non-Hodgkin lymphoma (5/14), diffuse large B-cell lymphoma (6/14) and high-grade B-cell lymphoma not otherwise specified (3/14)...
January 15, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29333072/prevalence-of-incidental-pancreatic-cyst-on-upper-endoscopic-ultrasound
#4
Belén Martínez, Juan F Martínez, José R Aparicio
Background: This study aimed to determine the prevalence of incidental pancreatic cysts in patients undergoing upper endoscopic ultrasound without a known pancreatic abnormality. Methods: This prospective study was conducted in two hospitals in Spain and enrolled consecutive patients referred for upper endoscopic ultrasound for a condition unrelated to the pancreas. Patients with a previous pancreatic anomaly, history of acute or chronic pancreatitis, evidence of acute pancreatitis, previous upper gastrointestinal surgery, or chronic abdominal pain suggestive of pancreatic origin were excluded...
January 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29331723/progesterone-arrested-cell-cycle-progression-through-progesterone-receptor-isoform-a-in-pancreatic-neuroendocrine-neoplasm
#5
Samaneh Yazdani, Atsuko Kasajima, Yoshiaki Onodera, Keely May McNamara, Kazue Ise, Yasuhiro Nakamura, Tomoyoshi Tachibana, Fuyuhiko Motoi, Michiaki Unno, Hironobu Sasano
In pancreatic neuroendocrine neoplasms (Pan-NEN) progesterone signaling has been shown to have both inhibitory and stimulatory effects on cell proliferation. The ability of progesterone to inhibit tumor proliferation is of particular interest and is suggested to be mediated through the less abundantly expressed progesterone receptor (PR) isoform A (PRA). To date the mechanistic processes underlying this inhibition of proliferation remain unclear. To examine the mechanism of PRA actions, the human Pan-NEN cell line QGP-1, that endogenously expresses PR isoform B (PRB) without PRA, was transfected with PRA...
January 10, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29329161/utility-of-endoscopic-ultrasonography-screening-for-small-pancreatic-cancer-and-proposal-for-a-new-scoring-system-for-screening
#6
Ryota Sagami, Hidefumi Nishikiori, Katsuhiro Anami, Shozo Fujiwara, Koichi Honda, Shoichiro Ikuyama, Masayuki Kitano, Kazunari Murakami
OBJECTIVES: This study aimed to evaluate the utility of endoscopic ultrasonography screening for small pancreatic cancer (PC) and propose a new simple scoring system for selecting individuals who should be screened. METHODS: Risk factors or symptoms related to PC were tentatively divided into high- and low-grade risk groups based mainly on reported relative risk values. Numbers of risk factors were designated as risk scores. Endoscopic ultrasonography screening was performed for 632 individuals...
January 12, 2018: Pancreas
https://www.readbyqxmd.com/read/29329160/predictive-effect-of-the-total-number-of-examined-lymph-nodes-on-n-staging-and-survival-in-pancreatic-neuroendocrine-neoplasms
#7
Xianbin Zhang, Lili Lu, Peng Liu, Fei Cao, Yushan Wei, Li Ma, Peng Gong
OBJECTIVES: We aim to examine the predictive effect of the total number of examined lymph nodes on N stage and survival in pancreatic neuroendocrine neoplasms (pNENs) and to determine the optimal threshold. METHODS: A pNENs data set from 2004 to 2013 was extracted from the Surveillance, Epidemiology, and End Result database. Multivariate logistic regression and Cox proportional hazards model were used to identify predictive factors associated with N stage and survival, respectively...
January 12, 2018: Pancreas
https://www.readbyqxmd.com/read/29325350/-the-current-status-of-diagnosis-and-treatment-of-pancreatic-cystic-neoplasm-in-china-a-report-of-2-251-cases
#8
(no author information available yet)
Objective: To analyze the current status of diagnosis and treatment of pancreatic cystic neoplasm(PCN)in China. Methods: Clinical data of 2 251 PCN patients who underwent surgical resection from January 2006 to December 2016 in 16 institutions was retrospectively analyzed.Excel database was created which covered 132 fields of 7 fields: general information of patients, imaging findings, preoperative blood biochemical indexes, tumor markers, surgical related data, postoperative complications and pathology. Results: Of the 2 251 patients, the male to female ratio was 1...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29325345/-important-issues-need-to-be-emphasized-in-the-diagnosis-and-treatment-of-pancreatic-cystic-neoplasms
#9
W H Lou, Y P Zhao
The patients of pancreatic cystic neoplasms diagnosed and treated are increasing over the past decade. Recent and long-tern risk and benefit should be well balanced when considering treatment, follow the principle of patient-benefit. For low malignancy potential neoplasm like serous cystic tumor or branch duct intraductal papillary mucinous neoplasm, surgical indication should be reserved to those with obvious malignant potential.Decreasing perioperative mortality and morbidity should be emphasized. Comprehensive studies are needed to validate the efficacy of new diagnostic and treatment technique before applied to clinical...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29321190/genomic-landscape-of-pancreatic-neuroendocrine-tumours-the-international-cancer-genome-consortium
#10
Andrea Mafficini, Aldo Scarpa
Neuroendocrine tumours (NETs) may arise throughout the body and are a highly heterogeneous, relatively rare class of neoplasms difficult to study also for the lack of disease models. Despite this, knowledge on their molecular alterations has expanded in the latest years, also building from genetic syndromes causing their onset. Pancreatic NETs (PanNETs) have been among the most studied, and research so far has outlined a series of recurring features, as inactivation of MEN1, VHL, TSC1/2 genes, and hyperactivation of the PI3K/mTOR pathway...
January 10, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29317372/pancreas-ductal-adenocarcinoma-with-cystic-features-on-cross-sectional-imaging-radiologic-pathologic-correlation
#11
Seo Yeon Youn, Sung Eun Rha, Eun Sun Jung, In Seok Lee
Most pancreatic ductal adenocarcinomas (PDAs) show solid growth pattern, but ductal adenocarcinomas may demonstrate intratumoral cystic appearance or accompany peritumoral non-neoplastic cystic lesions, thus mimicking cystic pancreatic tumors on imaging studies. The histopathologic findings for PDA with cystic feature are divided into neoplastic and non-neoplastic cysts. Neoplastic cystic changes include large-duct type cysts (microcystic appearance), neoplastic mucin cysts (macrocystic appearance), colloid carcinomas (mucinous noncystic adenocarcinomas), and degenerative cystic change usually caused by hemorrhagic necrosis of tumor...
January 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29310347/radical-antegrade-modular-pancreatosplenectomy-for-adenocarcinomaof-the-body-of-the-pancreas-in-a-patient-with-portal-annular-pancreas-aberrant-hepatic-artery-and-absence-of-the-celiac-trunk-a-case-report
#12
Hao Yuan, Pengfei Wu, Jianmin Chen, Zipeng Lu, Lei Chen, Jishu Wei, Feng Guo, Baobao Cai, Jie Yin, Dong Xu, Kuirong Jiang, Yi Miao
RATIONALE: Portal annular pancreas is a rare anatomic variation, where the uncinated process of the pancreas connects with the dorsal pancreas and the pancreas tissue encases the portal vein (PV), superior mesenteric vein (SMV) or splenic vein (SV). Malignancies are quite uncommon in the patients, who have an annular pancreas especially portal annular pancreas. Ectopic common hepatic artery and absence of the celiac trunk (CT) are the other infrequent abnormalities. PATIENT CONCERNS: A 74-year-old man suffered from upper abdominal and back pain...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29305088/immunohistochemical-analysis-of-imp3-and-p53-expression-in-endoscopic-ultrasound-guided-fine-needle-aspiration-and-resected-specimens-of-pancreatic-diseases
#13
Junichi Senoo, Rintaro Mikata, Takashi Kishimoto, Masahiro Hayashi, Yuko Kusakabe, Shin Yasui, Mutsumi Yamato, Hiroshi Ohyama, Harutoshi Sugiyama, Toshio Tsuyuguchi, Hideyuki Yoshitomi, Masayuki Ohtsuka, Juri Maeda, Satoshi Ota, Yukio Nakatani, Naoya Kato
BACKGROUND: Insulin-like growth factor II messenger ribonucleic acid-binding protein 3 (IMP3) is a valuable marker that distinguishes malignant from benign lesions and predicts prognosis. METHODS: First, we evaluated IMP3 expression in 77 resected specimens of pancreatic ductal adenocarcinoma (PDAC), intraductal papillary mucinous neoplasm (IPMN), and chronic pancreatitis (CP). Eleven PDAC patients preoperatively underwent endoscopic ultrasound-guided fine needle aspiration (EUS-FNA)...
December 26, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29301491/pancreatic-panniculitis-the-bright-side-of-the-moon-in-solid-cancer-patients
#14
Elena Guanziroli, Antonella Colombo, Antonella Coggi, Raffaele Gianotti, Angelo Valerio Marzano
BACKGROUND: Pancreatic panniculitis is a rare complication of pancreas disorders occurring in 0.3-3% of patients, most often accompanied by the pancreatic acinar carcinoma. It presents multiple, painful, deep, ill-defined, red-brown, migratory nodules and plaques of hard elastic consistency; often ulcerated and typically located on the lower proximal and distal extremities. The pathogenesis is not fully understood, but it is thought to result from lipolysis and fat necrosis with secondary tissue inflammation induced by pancreatic enzymes...
January 4, 2018: BMC Gastroenterology
https://www.readbyqxmd.com/read/29299757/benign-tumors-of-the-pancreas-radical-surgery-versus-parenchyma-sparing-local-resection-the-challenge-facing-surgeons
#15
EDITORIAL
Hans G Beger
Pancreaticoduodenectomy and left-sided pancreatectomy are the surgical treatment standards for tumors of the pancreas. Surgeons, who are requested to treat patients with benign tumors, using standard oncological resections, face the challenge of sacrificing pancreatic and extra-pancreatic tissue. Tumor enucleation, pancreatic middle segment resection and local, duodenum-preserving pancreatic head resections are surgical procedures increasingly used as alternative treatment modalities compared to classical pancreatic resections...
January 3, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29290942/identification-of-novel-serum-autoantibodies-against-eid3-in-non-functional-pancreatic-neuroendocrine-tumors
#16
Koji Hontani, Takahiro Tsuchikawa, Takaki Hiwasa, Toru Nakamura, Takashi Ueno, Toshihiro Kushibiki, Mizuna Takahashi, Kazuho Inoko, Hironobu Takano, Satoshi Takeuchi, Hirotoshi Dosaka-Akita, Masaki Kuwatani, Naoya Sakamoto, Yutaka Hatanaka, Tomoko Mitsuhashi, Hideaki Shimada, Toshiaki Shichinohe, Satoshi Hirano
Pancreatic neuroendocrine tumors (pNETs) are relatively rare heterogenous tumors, comprising only 1-2% of all pancreatic neoplasms. The majority of pNETs are non-functional tumors (NF-pNETs) that do not produce hormones, and as such, do not cause any hormone-related symptoms. As a result, these tumors are often diagnosed at an advanced stage because patients do not present with specific symptoms. Although tumor markers are used to help diagnosis and predict some types of cancers, chromogranin A, a widely used tumor marker of pNETs, has significant limitations...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290920/extrapancreatic-solid-pseudopapillary-neoplasm-followed-by-multiple-metastases-case-report
#17
Hao Wu, Yan-Fen Huang, Xiang-Hong Liu, Mei-Hua Xu
Solid pseudopapillary neoplasm (SPN), also known as Gruber-Frantz tumor, is a rare form of neoplasm that almost exclusively occurs in the pancreas and in young females. While the potential of malignancy is low for SPN, these tumors can mimic other diseases and require a meticulous investigation and a standard treatment by total surgical resection. We present an unusual case of SPN arising in the mesentery of a 40-year-old man with subsequent multiple metastases. Histopathological examination showed similar properties of the mesenteric neoplasm to those of SPN in pancreas...
December 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/29289465/investigating-the-role-of-transcription-factors-of-pancreas-development-in-pancreatic-cancer
#18
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/29287021/does-computed-tomography-have-the-ability-to-differentiate-aggressive-from-nonaggressive-solid-pseudopapillary-neoplasm
#19
Ashita Rastogi, Mathew Assing, Mellisa Taggart, Brinda Rao, Jia Sun, Khaled Elsayes, Eric Tamm, Priya Bhosale
OBJECTIVE: The aim of the study was to assess the ability of contrast-enhanced computed tomography (CECT) to differentiate aggressive from nonaggressive solid pseudopapillary neoplasms (SPNs). MATERIALS AND METHODS: Forty treatment-naive patients with pathologically proven pancreatic SPNs were included. Imaging characteristics were determined by consensus of 3 radiologists blinded to histopathologic aggressiveness. All patients underwent 4-phase CECT using a pancreatic protocol...
December 28, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29286105/tsoong-induces-apoptosis-and-inhibits-proliferation-migration-and-invasion-of-pancreatic-ductal-adenocarcinoma-cells
#20
Yun-Peng Luan, Qi-Feng Li, Shi-Guo Wu, De-Chang Mao, Yan-Yun Deng, Rong-Wang Chen
The roots of Codonopsis cordifolioidea (classified as campanulaceae cordifolioidea), locally known as Tsoong, have been used as a tonic food. The major components isolated from Tsoong have been demonstrated to present anti‑human immunodeficiency virus‑1 activities and cytotoxicity against various tumor cell lines. However, the possible effects of the novel compound isolated from Tsoong, cordifoliketones A, on pancreatic ductal adenocarcinoma (PDAC) cells, are still unknown. In the present study, cordifoliketones A extractions were prepared from Tsoong, and the possible effects on PDAC cell growth, apoptosis, migration and invasion in vitro and in vivo were exlored...
December 20, 2017: Molecular Medicine Reports
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