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https://www.readbyqxmd.com/read/29670173/overexpression-of-her2-in-the-pancreas-promotes-development-of-intraductal-papillary-mucinous-neoplasms-in-mice
#1
Wataru Shibata, Hiroto Kinoshita, Yohko Hikiba, Takeshi Sato, Yasuaki Ishii, Soichiro Sue, Makoto Sugimori, Nobumi Suzuki, Kosuke Sakitani, Hideaki Ijichi, Ryutaro Mori, Itaru Endo, Shin Maeda
Pancreatic ductal adenocarcinoma (PDA) has a 5-year survival rate of less than 5% and is the sixth leading cause of cancer death. Although KRAS mutations are one of the major driver mutations in PDA, KRAS mutation alone is not sufficient to induce invasive pancreatic cancer in mice model. HER2, also known as ERBB2, is a receptor tyrosine kinase, and overexpression of HER2 is associated with poor clinical outcomes in pancreatic cancer. However, no report has shown whether HER2 and its downstream signaling contributes to the pancreatic cancer development...
April 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29669190/analysis-of-histologic-follow-up-and-risk-of-malignancy-for-salivary-gland-neoplasm-of-uncertain-malignant-potential-proposed-by-the-milan-system-for-reporting-salivary-gland-cytopathology
#2
Haiyan Liu, Clarissa Ljungren, Fan Lin, Matthew A Zarka, Longwen Chen
BACKGROUND: The Milan System for Reporting Salivary Gland Cytopathology is a tiered classification scheme that includes 6 diagnostic categories. Neoplasm, which is 1 of the 6 proposed categories, consists of benign neoplasm and neoplasm of uncertain malignant potential (NUMP). NUMP is reserved for a salivary gland neoplasm without clear distinction between benign and malignant. The objective of this study was to assess the risk of malignancy (ROM) of NUMP. METHODS: A retrospective analysis was conducted on 656 salivary gland fine-needle aspiration specimens from 2010 to 2016...
April 18, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29667626/eus-fna-in-cystic-pancreatic-lesions-where-are-we-now-and-where-are-we-headed-in-the-future
#3
REVIEW
Jose Lariño-Noia, Julio Iglesias-Garcia, Daniel de la Iglesia-Garcia, J Enrique Dominguez-Muñoz
EUS-FNA is often performed in the evaluation of Cystic Pancreatic Lesions (CPL) for a better preoperative characterization. The objective is to identify premalignant lesions as Mucinous Cystic Neoplasms, and/or a malignant transformation of them (adenocarcinoma). The role of cytological evaluation in this setting is discouraging and intracystic markers analysis, mainly CEA, lacks of a good specificity for the detection of mucinous neoplasms. New devices and approaches have emerged to overcome these problems as the cytology brush (Echobrush), the small mini-biopsy foceps, the cystoscopy and the needle Confocal LASER Endomicroscopy (nCLE), showing in some studies good rates of accuracy for distinguishing among mucinosus and non-mucinous neoplasms...
March 2018: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/29660844/moray-micro-forceps-biopsy-improves-the-diagnosis-of-specific-pancreatic-cysts
#4
M Lisa Zhang, Ronald N Arpin, William R Brugge, David G Forcione, Omer Basar, Martha B Pitman
BACKGROUND: Making a specific diagnosis of pancreatic cysts preoperatively is difficult. The new disposable Moray micro forceps biopsy (MFB) device allows tissue sampling from the pancreatic cyst wall/septum and aims to improve diagnosis. This study compares the diagnostic performance of the MFB with the current conventional analysis of pancreatic cyst fluid (PCF). METHODS: A total of 48 patients sampled with MFB were identified. Cysts were classified as mucinous on PCF based on extracellular mucin/mucinous epithelium, carcinoembryonic antigen (CEA) levels ≥192 ng/mL, or KRAS/GNAS mutation...
April 16, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29650941/-a-case-of-an-intraductal-papillary-mucinous-neoplasm-which-rapidly-worsened-and-penetrated-into-the-stomach-and-the-transverse-colon
#5
Akira Sogawa, Kei Nakamura, Tomoyuki Nagata, Satoshi Mochizuki, Yuen Nakase, Shozo Kitai, Seishirou Inaba, Keiji Shimada
We report a case of a 71-year-old woman.She visited our hospital with a complaint of high fever and abdominal distention. She has been pointed out intraductal papillary mucinous neoplasm(IPMN)4 years ago.Abdominal CT showed cystic legion, 80mm in diameter, on the pancreas.The lesion was unclear at the boundary between the main pancreatic duct and in contact with the stomach, transverse colon.Upper endoscopic and colonoscopic examination revealed the exhaustion image from the intestional tract but not pointed out the malignant findings...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650930/-a-case-of-early-gastric-cancer-with-multiple-lymph-node-metastases-revealed-by-additional-surgical-resection-after-esd
#6
Yoshitaka Nakamura, Masayuki Yubakami, Yutaka Kondo, Yukihisa Nishimura, Momoko Todo, Kiyoto Atsuji, Akihiro Yamaguchi, Naoki Kakihara, Osamu Ikawa, Hiroki Taniguchi
A 74-year-old man was referred to our hospital for further investigation of a cystic lesion in the pancreatic body, which had been detected by ultrasonography at a local hospital. He was diagnosed as intraductal papillary mucinous neoplasm(IPMN) and further preoperative examinations were conducted. Upper gastrointestinal endoscopy demonstrated a type 0-II c tumor of the greater curvature in the upper third of the stomach. Endoscopic ultrasonography showed no sign of submucosal invasion. Endoscopic submucosal dissection(ESD)was carried out and pathological examination of a specimen revealed well differentiated adenocarcinoma with submucosal invasion, which fulfilled the indication for additional gastrectomy with lymph node dissection...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29643478/mucin-gel-assembly-is-controlled-by-a-collective-action-of-non-mucin-proteins-disulfide-bridges-ca-2-mediated-links-and-hydrogen-bonding
#7
Oliver W Meldrum, Gleb E Yakubov, Mauricio R Bonilla, Omkar Deshmukh, Michael A McGuckin, Michael J Gidley
Mucus is characterized by multiple levels of assembly at different length scales which result in a unique set of rheological (flow) and mechanical properties. These physical properties determine its biological function as a highly selective barrier for transport of water and nutrients, while blocking penetration of pathogens and foreign particles. Altered integrity of the mucus layer in the small intestine has been associated with a number of gastrointestinal tract pathologies such as Crohn's disease and cystic fibrosis...
April 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29624774/multicystic-mucinous-adenocarcinoma-of-the-uterine-cervix-compared-with-benign-multicystic-lesions-multiparametric-mr-features
#8
Jiacheng Song, Qiming Hu, Junwen Huang, Zhanlong Ma, Ting Chen
BACKGROUND: Multicystic mucinous adenocarcinoma is rarely recognized and has a high misdiagnosis rate. PURPOSE: To distinguish malignant multicystic mucinous adenocarcinomas from benign multicystic lesions in the uterine cervix using multiparametric MR. STUDY TYPE: Retrospective. POPULATION: Forty patients with seven cystic mucinous adenocarcinomas and 33 benign multicystic lesions. FIELD STRENGTH/SEQUENCE: 3...
April 6, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29624714/two-cases-of-discrete-adenoid-pseudogland-formation-within-benign-intradermal-melanocytic-nevi
#9
Jonathan C Banta, Justin P Bandino
We report two cases of benign intradermal melanocytic nevi with discrete glandular elements and mucin deposition engendering a diagnostic dilemma. The preliminary differential included entrapment of adnexal structures, collision with an adnexal neoplasm such as adenoid cystic carcinoma, or metastatic adenocarcinoma. A colloidal iron special stain confirmed the deposition of mucin, however a pankeratin AE1/AE3 immunohistochemical cocktail was surprisingly negative. Closer cytological examination of the discrete "glands" combined with nearby pseudoangiomatous (almost Kaposiform) change hinted at melanocytic origin, and was confirmed with a positive MART-1 immunohistochemical stain...
April 6, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29622708/epidermoid-cyst-within-an-intrapancreatic-accessory-spleen
#10
Anghela Paredes, Eliza Wright Beal, Mary E Dillhoff
This is a case of an epidermoid cyst in an intrapancreatic accessory spleen at the tail of the pancreas. Concurrent epidermoid cyst within the accessory spleen is an exceedingly rare entity. The patient initially presented with abdominal pain, nausea and vomiting. Imaging studies revealed a 3.6 cm cystic mass in the tail of the pancreas that was concerning for a mucinous cystic neoplasm (MCN). The patient underwent a robotic distal pancreatectomy for a suspected diagnosis of MCN, which following histologically examination was found to be an epidermoid cyst of an intrapancreatic accessory spleen...
April 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29622704/mucinous-adenocarcinoma-arising-from-chronic-perianal-fistula-mimicking-horseshoe-abscess
#11
Surya Nandan Prasad, Abdul Razik, Farhana Siddiqui, Hira Lal
Perianal fistulae are commonly seen clinical entity. Development of malignancy within a perianal fistula is rare. Even rarer is the development of mucinous adenocarcinoma in a chronic fistula-in-ano. Only a handful of such cases have been reported in the past. A case of mucinous adenocarcinoma arising in chronic perianal fistula in a 34-year-old woman is being described. She presented with complaints of perineal fullness, pain and recurrent pus discharge from perianal fistula for 4 years. On radiological workup, a large solid-cystic pelvic mass was seen in relation to the fistula...
April 5, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29606939/laparoscopic-resection-of-an-epithelial-cyst-in-an-intrapancreatic-accessory-spleen
#12
REVIEW
Kazuhiro Suzumura, Etsuro Hatano, Toshihiro Okada, Yasukane Asano, Naoki Uyama, Ikuo Nakamura, Seikan Hai, Nobutaka Ichikawa, Keiji Nakasho, Jiro Fujimoto
An epithelial cyst in an intrapancreatic accessory spleen (ECIAS) is rare. We herein report a case of a patient with ECIAS who underwent laparoscopic surgery. A 57-year-old woman was referred to our hospital because of a pancreatic tail tumor. She was asymptomatic, and a physical examination revealed no remarkable abnormalities. The levels of the tumor marker carbohydrate antigen 19-9 (CA19-9) and s-pancreas-1 antigen (SPan-1) were elevated. Ultrasonography showed a well-defined homogeneous cystic tumor. Computed tomography showed a well-demarcated cystic tumor in the pancreatic tail...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29593866/a-rare-case-of-giant-extra-ovarian-mucinous-cystadenoma-arising-from-sigmoid-mesocolon
#13
Andrew Tan, Ran Li, Mohammed Rafique, Sharon Qin, Toan Pham
An 80-year-old female presented with one month history of acutely worsening abdominal distention and pain, without features of bowel obstruction. A giant intra-abdominal simple cyst, separate from the ovaries, was seen on imaging. Initial haematological and biochemical investigations, including tumour markers, were normal. At laparotomy, the cystic tumour was discovered to arise from the sigmoid mesocolon and was resected en bloc . Histopathology revealed the tumour to be a benign extra-ovarian mucinous cystadenoma, which is a neoplasm of ovarian origin that can arise from extra-ovarian sites, including the mesentery...
March 2018: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29589164/progression-patterns-in-the-remnant-pancreas-after-resection-of-non-invasive-or-micro-invasive-intraductal-papillary-mucinous-neoplasms-ipmn
#14
Mohammad Al Efishat, Marc A Attiyeh, Anne A Eaton, Mithat Gönen, Olca Basturk, David Klimstra, Michael I D'Angelica, Ronald P DeMatteo, T Peter Kingham, Vinod Balachandran, William R Jarnagin, Peter J Allen
BACKGROUND: Although IPMN are thought to represent a whole-gland disease, segmental resection remains the most frequently performed treatment. We sought to determine the rates, patterns, and predictors of IPMN progression in the pancreatic remnant following segmental resection of noninvasive or microinvasive IPMN. METHODS: A prospectively maintained database was queried to identify all patients who underwent resection of noninvasive or microinvasive IPMN (≤ 10 mm of invasive component) between 1989 and 2015...
March 27, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29574408/european-evidence-based-guidelines-on-pancreatic-cystic-neoplasms
#15
(no author information available yet)
Evidence-based guidelines on the management of pancreatic cystic neoplasms (PCN) are lacking. This guideline is a joint initiative of the European Study Group on Cystic Tumours of the Pancreas, United European Gastroenterology, European Pancreatic Club, European-African Hepato-Pancreato-Biliary Association, European Digestive Surgery, and the European Society of Gastrointestinal Endoscopy. It replaces the 2013 European consensus statement guidelines on PCN. European and non-European experts performed systematic reviews and used GRADE methodology to answer relevant clinical questions on nine topics (biomarkers, radiology, endoscopy, intraductal papillary mucinous neoplasm (IPMN), mucinous cystic neoplasm (MCN), serous cystic neoplasm, rare cysts, (neo)adjuvant treatment, and pathology)...
March 24, 2018: Gut
https://www.readbyqxmd.com/read/29566483/sputum-active-polymyxin-lipopeptides-activity-against-cystic-fibrosis-pseudomonas-aeruginosa-isolates-and-their-interactions-with-sputum-biomolecules
#16
Elena K Schneider-Futschik, Olivia K A Paulin, Daniel Hoyer, Kade D Roberts, James Ziogas, Mark A Baker, John Karas, Jian Li, Tony Velkov
The mucoid biofilm mode of growth of Pseudomonas aeruginosa in the lungs of cystic fibrosis patients makes eradication of infections with antibiotic therapy very difficult. The lipopeptide antibiotics polymyxin B and colistin are currently the last-resort therapies for infections caused by multidrug-resistant P. aeruginosa. In the present study, we investigated the antibacterial activity of a series of polymyxin lipopeptides (polymyxin B, colistin, FADDI-003, octapeptin A3 and polymyxin A2) against a panel of polymyxin-susceptible and polymyxin-resistant P...
March 22, 2018: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29560696/benign-premalignant-and-malignant-pancreatic-cystic-lesions-the-pathology-landscape
#17
REVIEW
P Demetter, L Verset
Pancreatic cystic lesions are being increasingly detected in last years. Pancreatic cysts can be classified grossly into pseudocysts and true cysts. In the true cysts group, it is important to distinguish mucinous from non-mucinous cysts because the former are considered being premalignant lesions. In this article the major types of pancreatic cysts are reviewed, with emphasis on the histopathological aspects. Molecular markers in the cyst fluid are being increasingly studied in recent years ; the clinical utility of such biomarkers should be addressed in future studies...
April 2017: Acta Gastro-enterologica Belgica
https://www.readbyqxmd.com/read/29557198/double-cystic-brain-metastasis-in-a-patient-with-stable-pancreatic-intraductal-papillary-mucinous-neoplasm
#18
Valentina Tardivo, Francesca Vincitorio, Matteo Monticelli, Luca Bertero, Francesco Zenga, Alessandro Ducati, Paola Cassoni, Diego Garbossa
BACKGROUND: Brain metastases in pancreatic cancer are a rare condition and are usually seen in case of pancreatic adenocarcinoma. Only few cases of brain metastasis in patients affected by Intraductal papillary mucinous neoplasm (IPMN) are actually reported. CASE DESCRIPTION: We report a patient diagnosed with double cystic brain lesions that the histological examination reveal to be consistent, with pancreatic metastasis. Our patient had an history shown of stable pancreatic IPMN which has never made the oncologist suspicious about neoplastic progression or degeneration into pancreatic carcinoma...
March 20, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29542244/gastrointestinal-superinfection-of-a-large-cystic-mucinous-pancreatic-neoplasm
#19
D Sunjaya, J Jacobi, S Sweetser
No abstract text is available yet for this article.
April 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29536430/neuroendocrine-neoplasm-of-pancreas-with-cystic-degeneration-mimicking-mucinous-cystic-neoplasm
#20
Uayporn Kaosombatwattana, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Takuya Ishikawa, Hiroki Suhara, Hidemi Goto
Endoscopic ultrasound is increasingly being used for evaluation of pancreatic diseases and pancreatic tumors. Among various pancreatic cystic lesions, cystic degeneration of pancreatic neuroendocrine neoplasm is of the challenge in making diagnosis. Although unique characteristic of each type of pancreatic cystic lesions has been proposed abundantly, typical morphology of cystic degeneration of pancreatic neuroendocrine neoplasm is still unclear. We, herein, reported a case of 66-year-old woman who was incidentally found to have a cystic lesion in the tail of pancreas upon screening transabdominal ultrasonography...
March 13, 2018: Clinical Journal of Gastroenterology
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