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Serrated polyposis

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https://www.readbyqxmd.com/read/29739023/the-clinical-significance-and-synchronous-polyp-burden-of-large-%C3%A2-20-mm-sessile-serrated-polyps-in-patients-without-serrated-polyposis-syndrome
#1
Lobke Desomer, David J Tate, Mahesh Jayanna, Maria Pellise, Halim Awadie, Nicholas G Burgess, Duncan McLeod, Hema Mahajan, Eric Y T Lee, Stephen J Williams, Michael J Bourke
BACKGROUND:  Sessile serrated polyps (SSPs) are important precursors of colorectal carcinoma and interval cancer. Large SSPs (≥ 20 mm) outside the definition of serrated polyposis syndrome (SPS) have not been studied in comparison with SPS. We aimed to describe the characteristics of patients with large SSPs in this context. METHODS:  Patients with at least one SSP (≥ 20 mm) were eligible. Data from three consecutive colonoscopies were used to compare clinical and endoscopic characteristics in three patient groups: SPS, a solitary large SSP, and patients with at least two SSPs without fulfilling the criteria for SPS (oligo-SSP)...
May 8, 2018: Endoscopy
https://www.readbyqxmd.com/read/29564561/development-and-endoscopic-appearance-of-colorectal-tumors-are-characterized-by-the-expression-profiles-of-mirnas
#2
REVIEW
Yoshihito Nakagawa, Yukihiro Akao, Tomomitsu Tahara, Hiromi Yamashita, Mitsuo Nagasaka, Tomoyuki Shibata, Naoki Ohmiya
Accumulating data indicates that certain microRNAs (miRNAs or miRs) are differently expressed in samples of tumors and paired non-tumorous samples taken from the same patients with colorectal tumors. We previously reported to clarify the relationship between the expression of the miRNAs and the endoscopic morphological appearance of the colorectal tumors. In this report, we focused on colorectal adenoma (tubular or tubulovillous adenoma), or tubular early carcinoma or type 2 adenocarcinoma, familial adenomatous polyposis (FAP), ulcerative colitis-associated tumor (UCAT), and sessile serrated adenoma/polyp (SSA/P)...
March 21, 2018: Medical Molecular Morphology
https://www.readbyqxmd.com/read/29556334/potential-red-flag-identification-of-colorectal-adenomas-with-wide-field-fluorescence-molecular-endoscopy
#3
Elmire Hartmans, Jolien J J Tjalma, Matthijs D Linssen, Pilar Beatriz Garcia Allende, Marjory Koller, Annelies Jorritsma-Smit, Mariana E Silva de Oliveira Nery, Sjoerd G Elias, Arend Karrenbeld, Elisabeth G E de Vries, Jan H Kleibeuker, Gooitzen M van Dam, Dominic J Robinson, Vasilis Ntziachristos, Wouter B Nagengast
Adenoma miss rates in colonoscopy are unacceptably high, especially for sessile serrated adenomas / polyps (SSA/Ps) and in high-risk populations, such as patients with Lynch syndrome. Detection rates may be improved by fluorescence molecular endoscopy (FME), which allows morphological visualization of lesions with high-definition white-light imaging as well as fluorescence-guided identification of lesions with a specific molecular marker. In a clinical proof-of-principal study, we investigated FME for colorectal adenoma detection, using a fluorescently labelled antibody (bevacizumab-800CW) against vascular endothelial growth factor A (VEGFA), which is highly upregulated in colorectal adenomas...
2018: Theranostics
https://www.readbyqxmd.com/read/29400307/serrated-polyposis-syndrome-in-a-single-center-10-year-experience
#4
Hyun Young Kim
AIMS: Serrated polyposis syndrome is a disease that is often missed in the clinical setting and is associated with colorectal cancer. We investigated the prevalence of SPS and the association between colorectal or other cancers in a 10-year, retrospective data analysis. METHODS: We reviewed complete colonoscopy data obtained from January 2005 through January 2015 at a health-screening centre. Serrated polyposis syndrome was defined on the basis of the criteria established by the 2010 World Health Organization...
January 20, 2018: Balkan Medical Journal
https://www.readbyqxmd.com/read/29365221/colorectal-cancer-screening-and-surveillance-in-individuals-at-increased-risk
#5
Thad Wilkins, Danielle McMechan, Asif Talukder, Alan Herline
Individuals at increased risk of developing colorectal cancer include those with a personal or family history of advanced adenomas or colorectal cancer, a personal history of inflammatory bowel disease, or genetic polyposis syndromes. In general, these persons should undergo more frequent or earlier testing than individuals at average risk. Individuals who have a first-degree relative with colorectal cancer or advanced adenoma diagnosed before 60 years of age or two first-degree relatives diagnosed at any age should be advised to start screening colonoscopy at 40 years of age or 10 years younger than the earliest diagnosis in their family, whichever comes first...
January 15, 2018: American Family Physician
https://www.readbyqxmd.com/read/29330307/evidence-suggests-that-germline-rnf43-mutations-are-a-rare-cause-of-serrated-polyposis
#6
Isabel Quintana, Raquel Mejías-Luque, Mariona Terradas, Matilde Navarro, Virginia Piñol, Pilar Mur, Sami Belhadj, Elia Grau, Esther Darder, Ares Solanes, Joan Brunet, Gabriel Capellá, Markus Gerhard, Laura Valle
No abstract text is available yet for this article.
January 12, 2018: Gut
https://www.readbyqxmd.com/read/29213343/exome-sequencing-characterizes-the-somatic-mutation-spectrum-of-early-serrated-lesions-in-a-patient-with-serrated-polyposis-syndrome-sps
#7
Sukanya Horpaopan, Jutta Kirfel, Sophia Peters, Michael Kloth, Robert Hüneburg, Janine Altmüller, Dmitriy Drichel, Margarete Odenthal, Glen Kristiansen, Christian Strassburg, Jacob Nattermann, Per Hoffmann, Peter Nürnberg, Reinhard Büttner, Holger Thiele, Philip Kahl, Isabel Spier, Stefan Aretz
Background: Serrated or Hyperplastic Polyposis Syndrome (SPS, HPS) is a yet poorly defined colorectal cancer (CRC) predisposition characterised by the occurrence of multiple and/or large serrated polyps throughout the colon. A serrated polyp-CRC sequence (serrated pathway) of CRC formation has been postulated, however, to date only few molecular signatures of serrated neoplasia ( BRAF , KRAS, RNF43 mutations, CpG Island Methylation, MSI) have been described in a subset of SPS patients and neither the etiology of the syndrome nor the distinct genetic alterations during tumorigenesis have been identified...
2017: Hereditary Cancer in Clinical Practice
https://www.readbyqxmd.com/read/29169633/pathology-and-genetics-of-hereditary-colorectal-cancer
#8
REVIEW
Huiying Ma, Lodewijk A A Brosens, G Johan A Offerhaus, Francis M Giardiello, Wendy W J de Leng, Elizabeth A Montgomery
Colorectal cancer (CRC) accounts for over 8% of all deaths annually worldwide. Between 2 and 5% of all CRCs occur due to inherited syndromes, including Lynch syndrome, familial adenomatous polyposis, MUTYH-associated polyposis, Peutz-Jeghers syndrome, juvenile polyposis and Cowden/PTEN hamartoma syndrome. In addition, serrated polyposis is a clinically defined condition characterised by multiple colorectal serrated polyps and an increased risk of CRC but the genetics are not known. In most hereditary CRC syndromes, polyps undergo carcinogenesis, but the exact route to carcinoma seems to differ between the conditions...
January 2018: Pathology
https://www.readbyqxmd.com/read/29027468/serrated-polyposis-syndrome-associated-with-long-standing-inflammatory-bowel-disease
#9
Jesús Castro, Miriam Cuatrecasas, Francesc Balaguer, Elena Ricart, María Pellisé
Inflammatory bowel disease (IBD) patients are at an increased risk of developing colorectal cancer (CRC), which is thought to develop via the adenoma-carcinoma pathway. Since the discovery of the serrated carcinogenesis pathway and serrated polyposis syndrome (SPS), the incidence of carcinomas arising from serrated lesions in IBD patients has increased. We report three cases of long-standing IBD patients with associated serrated polyposis syndrome. At present, the pathophysiology of serrated lesions in IBD patients is not fully understood and there is a lack of strong evidence to confirm whether the manifestation of both conditions represents an increased risk of developing cancer...
November 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28979711/clinical-predictors-for-sessile-serrated-polyposis-syndrome-a-case-control-study
#10
Yang Wu, Alexander Mullin, Alina Stoita
AIM: To compared individuals with serrated polyposis syndrome (SPS) to those with sessile serrated adenoma (SSA) and adenomas in the setting of endoscopists with high adenoma detection rates at a secondary and tertiary academic centre. METHODS: Retrospectively we collated the clinical, endoscopic and histological features of all patients with SPS at St Vincent's public and private hospital in the last 3 years. Patients were identified by searching through 2 pathology databases...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28930817/cronkhite-canada-syndrome-associated-with-colon-cancer-metastatic-to-liver-a-case-report
#11
Jing Wang, Lei Zhao, Nina Ma, Juanjuan Che, Huihui Li, Bangwei Cao
RATIONALE: Cronkhite-Canada Syndrome (CCS) is an idiopathic, nonhereditary syndrome haracterized by gastrointestinal (GI) polyposis and ectodermal changes including alopecia, onychatrophia, and pigmentation. CCS colon polyps were previously considered to be benign neoplasms. However, serrated adenoma was reported to be associated with malignant neoplasms in some cases of gastric and colorectal carcinomas, and esophageal cancers. Although malignant colon and gastric cancer have been reported in CCS, reports of distant metastasis have been rare in CCS...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28751521/the-third-pathway-of-colorectal-carcinogenesis
#12
REVIEW
Carlos A Rubio, Giacomo Puppa, Giovanni de Petris, Lorand Kis, Peter T Schmidt
AIMS: The majority of the colorectal carcinomas (CRC) arise in a vast mucosal area built with columnar cells and mucus-producing goblet cells. These carcinomas evolve via the conventional (tubular/villous) adenoma-carcinoma pathway, or the serrated adenoma-carcinoma pathway. Much less frequently CRC arise in the gut-associated lymphoid tissue (GALT) mucosal domain via the third pathway of colorectal carcinogenesis. METHODS: All publications on human colorectal GALT carcinomas in the literature were reviewed...
January 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28688626/serrated-polyposis-syndrome
#13
N González, M Caballero, C Cannesa
No abstract text is available yet for this article.
January 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/28670238/clinical-characteristics-of-patients-with-serrated-polyposis-syndrome-in-korea-comparison-with-western-patients
#14
Eun Ran Kim, Jaryong Jeon, Jin Hee Lee, Yoon Jung Lee, Sung Noh Hong, Dong Kyung Chang, Young-Ho Kim
BACKGROUND/AIMS: Serrated polyposis syndrome (SPS) has been shown to increase the risk of colorectal cancer (CRC). However, little is known about the characteristics of Asian patients with SPS. This study aimed to identify the clinicopathological features and risk of CRC in Korean patients with SPS as well as the differences between Korean and Western patients based on a literature review. METHODS: This retrospective study included 30 patients with SPS as defined by World Health Organization classification treated at Samsung Medical Center, Korea, between March 1999 and May 2011...
July 2017: Intestinal Research
https://www.readbyqxmd.com/read/28530106/serrated-lesions-and-serrated-polyposis-syndrome
#15
Alberto Herreros de Tejada, Carmen González-Lois, José Santiago
The serrated pathway has been shown to be an alternative colorectal carcinogenetic route potentially accounting for up to one third of all CRCs. Serrated lesions, particularly SSPs, have been a focus of research during the past few years. They have well-established histological and molecular characteristics that account for their potential carcinogenetic risk through the accumulation BRAF, KRAS and methylator profile (CpG) mutations. Their endoscopic identification and resection represent a challenge because of their specific characteristics, and the need for an adequate specimen for histological diagnosis...
May 22, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28474162/-hereditary-colorectal-cancer-an-update-on-genetics-and-entities-in-terms-of-differential-diagnosis
#16
REVIEW
T T Rau, H Dawson, A Hartmann, J Rüschoff
The pathologist can contribute to recognizing hereditary causes of colorectal cancer via morphology. By identifying so-called index patients, it is possible to take preventive measures in affected families. The precise definition of the clinical presentation and the histopathological phenotype help to narrow the spectrum of expected genetic alterations. Novelties within Lynch syndrome include the recognition of EPCAM as a fifth gene locus, as well as the newly defined Lynch-like syndrome with evidence of somatic mismatch repair (MMR) mutations...
May 2017: Der Pathologe
https://www.readbyqxmd.com/read/28454282/gastrointestinal-tract-cancers-genetics-heritability-and-germ-line-mutations
#17
Xiao-Peng Lv
Gastrointestinal (GI) tract cancers that arise due to genetic mutations affect a large number of individuals worldwide. Even though many of the GI tract cancers arise sporadically, few of these GI tract cancers harboring a hereditary predisposition are now recognized and well characterized. These include Cowden syndrome, MUTYH-associated polyposis, hereditary pancreatic cancer, Lynch syndrome, Peutz-Jeghers syndrome, familial adenomatous polyposis (FAP), attenuated FAP, serrated polyposis syndrome, and hereditary gastric cancer...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28450390/british-society-of-gastroenterology-position-statement-on-serrated-polyps-in-the-colon-and-rectum
#18
REVIEW
James E East, Wendy S Atkin, Adrian C Bateman, Susan K Clark, Sunil Dolwani, Shara N Ket, Simon J Leedham, Perminder S Phull, Matt D Rutter, Neil A Shepherd, Ian Tomlinson, Colin J Rees
Serrated polyps have been recognised in the last decade as important premalignant lesions accounting for between 15% and 30% of colorectal cancers. There is therefore a clinical need for guidance on how to manage these lesions; however, the evidence base is limited. A working group was commission by the British Society of Gastroenterology (BSG) Endoscopy section to review the available evidence and develop a position statement to provide clinical guidance until the evidence becomes available to support a formal guideline...
July 2017: Gut
https://www.readbyqxmd.com/read/28400194/increased-risk-of-colorectal-cancer-in-patients-with-multiple-serrated-polyps-and-their-first-degree-relatives
#19
Cecilia Egoavil, Miriam Juárez, Carla Guarinos, María Rodríguez-Soler, Eva Hernández-Illán, Cristina Alenda, Artemio Payá, Adela Castillejo, Anna Serradesanferm, Luis Bujanda, Fernando Fernández-Bañares, Joaquín Cubiella, Luisa de-Castro, Ana Guerra, Elena Aguirre, Alberto Herreros-de-Tejada, Xavier Bessa, Maite Herráiz, José-Carlos Marín-Gabriel, Judith Balmaña, Virginia Piñol, Francisco Rodríguez Moranta, David Nicolás-Pérez, Miriam Cuatrecasas, Francesc Balaguer, Antoni Castells, José-Luis Soto, Pedro Zapater, Rodrigo Jover
BACKGROUND & AIMS: We investigated whether patients with multiple serrated polyps, but not meeting the World Health Organization criteria for serrated polyposis syndrome, and their relatives have similar risks for colorectal cancer (CRC) as those diagnosed with serrated polyposis. METHODS: We collected data from patients with more than 10 colonic polyps, recruited in 2008-2009 from 24 hospitals in Spain for a study of causes of multiple colonic polyps. We analyzed data from 53 patients who met the criteria for serrated polyposis and 145 patients who did not meet these criteria, but who had more than 10 polyps throughout the colon, of which more than 50% were serrated...
July 2017: Gastroenterology
https://www.readbyqxmd.com/read/28341823/a-case-with-serrated-polyposis-syndrome-controlled-by-multiple-applications-of-endoscopic-mucosal-resection-and-endoscopic-submucosal-dissection
#20
Daisuke Suzuki, Satohiro Matsumoto, Hirosato Mashima
BACKGROUND Serrated polyposis syndrome (SPS) is characterized by numerous hyperplastic polyps and sessile serrated adenoma/polyp (SSA/P) in the large intestine. SSA/P is known to transform into malignant lesions through the serrated pathway instead of the adenoma-carcinoma sequence. Early diagnosis with lower gastrointestinal endoscopy and early treatment are now considered to be essential. CASE REPORT We had an experience with a case of SPS to which endoscopic treatment was applied in multiple sessions. Endoscopic treatment was performed for 16 lesions in total, and the pathological findings were SSA/P for 15 and adenoma for the other lesion...
March 25, 2017: American Journal of Case Reports
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