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https://www.readbyqxmd.com/read/28421458/surgical-management-of-pancreatic-cysts-a-shifting-paradigm-toward-selective-resection
#1
REVIEW
Jon M Gerry, George A Poultsides
Due to the widespread use of high-quality cross-sectional imaging, pancreatic cystic neoplasms are being diagnosed with increasing frequency. Clinicians are therefore asked to counsel a growing number of patients with pancreatic cysts diagnosed incidentally at an early, asymptomatic stage. Over the last two decades, accumulating knowledge on the biologic behavior of these neoplasms along with improved diagnostics through imaging and endoscopic cyst fluid analysis have allowed for a selective therapeutic approach toward these neoplasms...
April 18, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28416122/patients-with-a-resected-pancreatic-mucinous-cystic-neoplasm-have-a-better-prognosis-than-patients-with-an-intraductal-papillary-mucinous-neoplasm-a-large-single-institution-series
#2
James F Griffin, Andrew J Page, Georges J Samaha, Adrienne Christopher, Feriyl Bhaijee, Maryam K Pezhouh, Niek A Peters, Ralph H Hruban, Jin He, Martin A Makary, Anne Marie Lennon, John L Cameron, Christopher L Wolfgang, Matthew J Weiss
BACKGROUND/OBJECTIVES: Mucinous cystic neoplasms (MCNs) are rare pancreas tumors distinguished from intraductal papillary mucinous neoplasms (IPMNs) by the presence of ovarian-type stroma. Historical outcomes for MCNs vary due to previously ambiguous diagnostic criteria resulting in confusion with IPMNs. This study seeks to characterize and clarify the clinical features and long-term outcomes of MCNs versus IPMNs in the largest single-institution series of pathology-confirmed MCNs to date...
April 11, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28415140/imaging-modalities-for-characterising-focal-pancreatic-lesions
#3
REVIEW
Lawrence Mj Best, Vishal Rawji, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: Increasing numbers of incidental pancreatic lesions are being detected each year. Accurate characterisation of pancreatic lesions into benign, precancerous, and cancer masses is crucial in deciding whether to use treatment or surveillance. Distinguishing benign lesions from precancerous and cancerous lesions can prevent patients from undergoing unnecessary major surgery. Despite the importance of accurately classifying pancreatic lesions, there is no clear algorithm for management of focal pancreatic lesions...
April 17, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28413390/a-serous-cystic-neoplasm-of-the-pancreas-coexisting-with-high-grade-pancreatic-intraepithelial-neoplasia-mimicking-an-intraepithelial-papillary-mucinous-neoplasm-a-case-report
#4
Aya Kawanishi, Kenichi Hirabayashi, Hirotaka Kono, Yumi Takanashi, Atsuko Hadano, Yohei Kawashima, Masami Ogawa, Yoshiaki Kawaguchi, Misuzu Yamada, Toshio Nakagohri, Naoya Nakamura, Tetsuya Mine
Serous cystic neoplasms of the pancreas are rare exocrine pancreatic neoplasms, most of which are benign and do not communicate with the pancreatic duct. Pancreatic intraepithelial neoplasm (PanIN) is considered a precursor of ductal adenocarcinoma that is microscopically recognized in pancreatic ducts. A 67-year-old Japanese woman presented with a 10-mm multilocular cystic lesion at the pancreatic body. Magnetic resonance pancreatography showed stenosis of the main pancreatic duct at the pancreatic body and dilatation of the distal side of the main pancreatic duct...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28410364/loss-of-arf4-causes-severe-degeneration-of-the-exocrine-pancreas-but-not-cystic-kidney-disease-or-retinal-degeneration
#5
Jillian N Pearring, Jovenal T San Agustin, Ekaterina S Lobanova, Christopher J Gabriel, Eric C Lieu, William J Monis, Michael W Stuck, Lara Strittmatter, Samer M Jaber, Vadim Y Arshavsky, Gregory J Pazour
Arf4 is proposed to be a critical regulator of membrane protein trafficking in early secretory pathway. More recently, Arf4 was also implicated in regulating ciliary trafficking, however, this has not been comprehensively tested in vivo. To directly address Arf4's role in ciliary transport, we deleted Arf4 specifically in either rod photoreceptor cells, kidney, or globally during the early postnatal period. Arf4 deletion in photoreceptors did not cause protein mislocalization or retinal degeneration, as expected if Arf4 played a role in protein transport to the ciliary outer segment...
April 14, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28404095/type-3c-pancreatogenic-diabetes-mellitus-secondary-to-chronic-pancreatitis-and-pancreatic-cancer
#6
REVIEW
Phil A Hart, Melena D Bellin, Dana K Andersen, David Bradley, Zobeida Cruz-Monserrate, Christopher E Forsmark, Mark O Goodarzi, Aida Habtezion, Murray Korc, Yogish C Kudva, Stephen J Pandol, Dhiraj Yadav, Suresh T Chari
Diabetes mellitus is a group of diseases defined by persistent hyperglycaemia. Type 2 diabetes, the most prevalent form, is characterised initially by impaired insulin sensitivity and subsequently by an inadequate compensatory insulin response. Diabetes can also develop as a direct consequence of other diseases, including diseases of the exocrine pancreas. Historically, diabetes due to diseases of the exocrine pancreas was described as pancreatogenic or pancreatogenous diabetes mellitus, but recent literature refers to it as type 3c diabetes...
November 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28404017/dna-testing-of-pancreatic-cyst-fluid-is-it-ready-for-prime-time
#7
REVIEW
Aatur D Singhi, Marina N Nikiforova, Kevin McGrath
Pancreatic cysts are a clinical quandary in both diagnosis and management. Although many cysts, such as pseudocysts and serous cystadenomas, are benign and can be monitored clinically, mucinous cysts, such as intraductal papillary mucinous neoplasms and mucinous cystic neoplasms, have the potential to progress to pancreatic cancer. Considering the poor prognosis of pancreatic cancer, the detection of a pancreatic cyst can be a source of anxiety for both the patient and physician. This diagnosis in turn can lead to expensive, invasive, and even harmful surveillance and treatment options...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28403885/lung-structure-and-function-similarities-between-primary-ciliary-dyskinesia-and-mild-cystic-fibrosis-a-pilot-study
#8
Marco Maglione, Silvia Montella, Carmine Mollica, Vincenzo Carnovale, Paola Iacotucci, Fabiola De Gregorio, Antonella Tosco, Mariarosaria Cervasio, Valeria Raia, Francesca Santamaria
BACKGROUND: Primary ciliary dyskinesia (PCD) and cystic fibrosis (CF) are increasingly compared. There are no chest magnetic resonance imaging (MRI) comparative studies of PCD and CF. We assessed clinical, functional, microbiological and MRI findings in PCD and mild CF patients in order to evaluate different expression of lung disease. METHODS: Twenty PCD (15.1 years) and 20 CF subjects with mild respiratory impairment (16 years, 70% with pancreatic insufficiency) underwent MRI, spirometry, and sputum cultures when clinically stable...
April 12, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28396783/young-lady-with-a-typical-solid-cystic-abdominal-mass
#9
Saket Kumar, Rahul Rahul, Abhijit Chandra
Solid pseudopapillary tumor is a rare pancreatic neoplasm that typically affects young women. Characteristic CT appearance is that of a mixed-density lesion with solid component peripherally and cystic component centrally. Even larger tumors are well encapsulated with sharp demarcation, amenable to complete resection.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28396777/pancreatic-pseudocyst-or-mucinous-cystadenocarcinoma-of-pancreas-a-diagnostic-dilemma
#10
Utsav Joshi, Prakash Poudel, Ram Kumar Ghimire, Babin Basnet
Pancreatic cystic neoplasm is difficult to distinguish from pseudocyst as clinical and radiological evidences may not be sufficient to make an accurate diagnosis. This may result in misdiagnosis with inappropriate management. Hence, every effort should be made for their distinction to avoid internal drainage procedures for neoplasms instead of extirpation.
April 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28396555/heterotopic-pancreatic-tissue-associated-with-type-1-choledochal-cyst-cystolithiasis-and-gall-bladder-stones-a-rare-entity-with-review-of-literature
#11
Aditi Arora, Pradyumn Singh, Nidhi Anand, Nuzhat Husain
Choledochal cyst is a rare congenital malformation, particularly when associated with stones in cyst (cystolithiasis), gallstones and heterotopic pancreatic tissue within the cyst wall. The current case represents a 5-year-old boy with abdominal pain, pale colored stools, and jaundice. Magnetic resonance cholangiopancreatography showed a cystic lesion, arising from common bile duct with cystolithiasis and cholelithiasis. He underwent excision of choledochal cyst and gallbladder with Roux-en-Y hepaticojejunostomy...
April 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28392015/modeling-cystic-fibrosis-disease-progression-in-patients-with-the-rare-cftr-mutation-p67l
#12
Isobel E R MacKenzie, Valerie Paquette, Frances Gosse, Sheenagh George, Frederic Chappe, Valerie Chappe
BACKGROUND: The progression of cystic fibrosis (CF) in patients with the rare mutation P67L was examined to determine if it induced a milder form of CF compared to the common severe ΔF508 mutation. METHODS: Parameters of lung function, level of bacterial infection, nutritional status and hospitalization were used to represent CF progression. Age at diagnosis and pancreatic status were used to assess CF presentation. Analysis of data from the CF Canada Registry collected over a 15-year period included 266 ΔF508/ΔF508 homozygote patients from CF clinics in Atlantic Canada and 26 compound heterozygote patients with the rare P67L mutation from clinics across Canada...
April 5, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/28390868/small-nucleolar-noncoding-rna-snora23-upregulated-in-human-pancreatic-ductal-adenocarcinoma-regulates-expression-of-syne2-to-promote-growth-and-metastasis-of-xenograft-tumors-in-mice
#13
Lin Cui, Kenji Nakano, Sumalee Obchoei, Kiyoko Setoguchi, Masaki Matsumoto, Tsuyoshi Yamamoto, Satoshi Obika, Kazuaki Shimada, Nobuyoshi Hiraoka
BACKGROUND & AIMS: Small nucleolar noncoding RNAs (snoRNAs) regulate function of ribosomes, and specific snoRNAs are dysregulated in some cancer cells. We investigated dysregulation of snoRNAs in pancreatic ductal adenocarcinoma (PDAC) cells. METHODS: We investigated snoRNA expression in PDAC cell lines by cDNA microarray and quantitative reverse transcription (qRT)-PCR. In PDAC (n=133), intraductal papillary mucinous neoplasm (IPMN, n=16), mucinous cystic neoplasm-associated PDAC (n=1), and non-tumor pancreas (n=8) and liver (n=3) tissues from subjects who underwent surgical resection, levels of snoRNA were measured by qRT-PCR and compared with clinicopathological parameters and survival times determined by Kaplan Meier analysis...
April 5, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28384265/growth-deficits-in-cystic-fibrosis-mice-begin-in-utero-prior-to-igf-1-reduction
#14
Rebecca Darrah, Ilya Bederman, Megan Vitko, Dana M Valerio, Mitchell L Drumm, Craig A Hodges
Growth deficits are common in cystic fibrosis (CF), but their cause is complex, with contributions from exocrine pancreatic insufficiency, pulmonary complications, gastrointestinal obstructions, and endocrine abnormalities. The CF mouse model displays similar growth impairment despite exocrine pancreatic function and in the absence of chronic pulmonary infection. The high incidence of intestinal obstruction in the CF mouse has been suggested to significantly contribute to the observed growth deficits. Previous studies by our group have shown that restoration of the cystic fibrosis transmembrane conductance regulator (CFTR) in the intestinal epithelium prevents intestinal obstruction but does not improve growth...
2017: PloS One
https://www.readbyqxmd.com/read/28384194/loss-of-slc9a3-decreases-cftr-protein-and-causes-obstructed-azoospermia-in-mice
#15
Ya-Yun Wang, Ying-Hung Lin, Yi-No Wu, Yen-Lin Chen, Yung-Chih Lin, Chiao-Yin Cheng, Han-Sun Chiang
Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene cause cystic fibrosis (CF) and are associated with congenital bilateral absence of the vas deferens (CBAVD), which is the major cause of infertility in male patients with CF. However, most Taiwanese patients with CBAVD do not carry major CFTR mutations. Some patients have a single copy deletion of the solute carrier family 9 isoform 3 (SLC9A3) gene. SLC9A3 is a Na+/H+ exchanger, and depleted Slc9a3 in male mice causes infertility due to the abnormal dilated lumen of the rete testis and efferent ductules...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28383565/diversity-of-precursor-lesions-for-pancreatic-cancer-the-genetics-and-biology-of-intraductal-papillary-mucinous-neoplasm
#16
Krushna C Patra, Nabeel Bardeesy, Yusuke Mizukami
Pancreatic ductal adenocarcinoma (PDA), one of the most lethal cancers worldwide, is associated with two main types of morphologically distinct precursors-pancreatic intraepithelial neoplasia (PanIN) and intraductal papillary mucinous neoplasm (IPMN). Although the progression of PanIN into invasive cancer has been well characterized, there remains an urgent need to understand the biology of IPMNs, which are larger radiographically detectable cystic tumors. IPMNs comprise a number of subtypes with heterogeneous histopathologic and clinical features...
April 6, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28379129/primary-hydatid-cyst-of-the-pancreas
#17
REVIEW
Paul Eduardo Lada, Diego Termengo, Gonzalos Cáceres, Carlos Sanchez Tacone, Fabian Caballero, Pablo Sonzini Astudillo
Hydatid cyst of the pancreas is a rare location of this disease. We study the case of a female patient with primary hydatid cyst of the pancreas coming from and endemic area and presenting pain and palpable tumor in epigastrium and right upper abdomen. The patient was studied with ultrasound scanning and CT scan in which it was interpreted as hydatid liver cyst. Pancreatic location was determined in surgery. Primary hydatid cyst of the pancreas must be taken into account as differential diagnosis with cystic lesions of the pancreas...
2017: Revista de la Facultad de Ciencias Médicas
https://www.readbyqxmd.com/read/28375947/chronic-pancreatitis-like-change-in-brca2-mutation-carriers
#18
Meir Mizrahi, Jennifer F Tseng, Daniel Wong, Nadine Tung, Mariam F Eskander, Tyler M Berzin, Douglas K Pleskow, Mandeep S Sawhney
OBJECTIVES: Pancreatic intraepithelial neoplasia lesions can appear as chronic pancreatitis-like changes on endoscopic ultrasound (EUS). The aim of our study was to determine if BRCA2 mutation carriers were more likely than noncarriers to demonstrate chronic pancreatitis-like changes on EUS. METHODS: Patients with BRCA2 mutations referred for EUS were identified (cases) from an endoscopy database. Controls were matched with cases in a 2:1 ratio for sex, date EUS was performed, endoscopist, and echoendoscope...
May 2017: Pancreas
https://www.readbyqxmd.com/read/28374746/intracellular-hmgb1-as-a-novel-tumor-suppressor-of-pancreatic-cancer
#19
Rui Kang, Yangchun Xie, Qiuhong Zhang, Wen Hou, Qingping Jiang, Shan Zhu, Jinbao Liu, Dexing Zeng, Haichao Wang, David L Bartlett, Timothy R Billiar, Herbert J Zeh, Michael T Lotze, Daolin Tang
Pancreatic ductal adenocarcinoma (PDAC) driven by oncogenic K-Ras remains among the most lethal human cancers despite recent advances in modern medicine. The pathogenesis of PDAC is partly attributable to intrinsic chromosome instability and extrinsic inflammation activation. However, the molecular link between these two events in pancreatic tumorigenesis has not yet been fully established. Here, we show that intracellular high mobility group box 1 (HMGB1) remarkably suppresses oncogenic K-Ras-driven pancreatic tumorigenesis by inhibiting chromosome instability-mediated pro-inflammatory nucleosome release...
April 4, 2017: Cell Research
https://www.readbyqxmd.com/read/28371566/cytologic-features-and-clinical-implications-of-undifferentiated-carcinoma-with-osteoclastic-giant-cells-of-the-pancreas-an-analysis-of-15-cases
#20
Michelle D Reid, Takashi Muraki, Kim HooKim, Bahar Memis, Rondell P Graham, Daniela Allende, Jiaqi Shi, David F Schaeffer, Remmi Singh, Olca Basturk, Volkan Adsay
BACKGROUND: The cytologic features of undifferentiated pancreatic carcinoma with osteoclastic giant cells (UOC) are rarely described. METHODS: Cytologic and clinicopathologic characteristics in 15 UOC fine-needle aspiration (FNA) specimens were analyzed. RESULTS: FNA specimens were obtained from 6 men and 8 women with a mean age of 65 years who had UOCs (head, n = 7; body, n = 3; and tail, n = 4) with a mean radiologic size 7.3 cm, and some had a cystic component (n = 9)...
April 3, 2017: Cancer
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