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https://www.readbyqxmd.com/read/29449094/safety-and-efficacy-of-small-bowel-polypectomy-using-a-balloon-assisted-enteroscope-in-pediatric-patients-with-peutz-jeghers-syndrome
#1
G Blanco-Velasco, O V Hernández-Mondragón, J M Blancas-Valencia, V Paz-Flores, D Fuentes-Hernández, P Rodríguez-González, B González-Ortíz
INTRODUCTION AND AIMS: Peutz-Jeghers syndrome is an autosomal dominant inherited pathology characterized by gastrointestinal hamartomatous polyps, predominantly in the small bowel, and pigmented mucocutaneous lesions. Guidelines suggest polypectomy with a balloon-assisted enteroscope when polyps are larger than 10mm. Complications in adults can be as high as 6.8%, but there is little information on pediatric populations. Our aim was to describe the safety and efficacy of polypectomy in a group of pediatric patients with Peutz-Jeghers syndrome using balloon-assisted enteroscopy...
February 12, 2018: Revista de Gastroenterología de México
https://www.readbyqxmd.com/read/29445890/benign-endometrial-proliferations-mimicking-malignancies-a-review-of-problematic-entities-in-small-biopsy-specimens
#2
REVIEW
Philip Pun-Ching Ip
Benign proliferations that mimic malignancies are commonly encountered during the course of assessment of small and fragmented endometrial samples. Although benign, endometrial epithelial metaplasias often coexist with premalignant or malignant lesions causing diagnostic confusion. The difficulty with mucinous metaplasia lies in its distinction from atypical mucinous glandular proliferations and mucinous carcinomas, which are associated with significant interobserver variability. Papillary proliferation of the endometrium is commonly associated with hormonal drugs and endometrial polyps and is characterised by papillae with fibrovascular cores covered by epithelial cells without cytologic atypia...
February 14, 2018: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29429965/mast-cells-promote-small-bowel-cancer-in-a-tumor-stage-specific-and-cytokine-dependent-manner
#3
Abdulrahman M Saadalla, Abu Osman, Michael F Gurish, Kristen L Dennis, Nichole R Blatner, Abdulmohammad Pezeshki, Kelly M McNagny, Hilde Cheroutre, Fotini Gounari, Khashayarsha Khazaie
Mast cells (MCs) are tissue resident sentinels that mature and orchestrate inflammation in response to infection and allergy. While they are also frequently observed in tumors, the contribution of MCs to carcinogenesis remains unclear. Here, we show that sequential oncogenic events in gut epithelia expand different types of MCs in a temporal-, spatial-, and cytokine-dependent manner. The first wave of MCs expands focally in benign adenomatous polyps, which have elevated levels of IL-10, IL-13, and IL-33, and are rich in type-2 innate lymphoid cells (ILC2s)...
February 13, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29423436/extended-cold-snare-polypectomy-for-small-colorectal-polyps-increases-the-r0-resection-rate
#4
Yasuhiro Abe, Haruaki Nabeta, Ryota Koyanagi, Taro Nakamichi, Hayato Hirashima, Alan Kawarai Lefor, Satoshi Shinozaki
Background and study aims: Despite widespread use of cold snare polypectomy (CSP), the R0 resection rate is not well documented. We perform extended CSP, resecting polyps with a > 1 mm circumferential margin. The aim of this study is to compare the R0 resection rate of extended CSP with conventional CSP and to assess safety. Patients and methods : From April 2014 to September 2016, 712 non-pedunculated colorectal polyps, < 10 mm in size, resected using CSP from 316 patients were retrospectively analyzed...
February 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29420839/underwater-endoscopic-mucosal-resection-of-a-duodenal-adenoma-with-biopsy-scars
#5
Minoru Kato, Yoshiki Tsujii, Tetsuo Takehara
Preoperative biopsies are required to diagnose superficial duodenal epithelial tumours because a non-invasive endoscopic method for accurate diagnosis has not been established. However, biopsies cause scarring of the lesion. Kinoshita et al. reported that 24.6% of the duodenal lesions considered applicable for conventional endoscopic mucosal resection (C-EMR) were treated by endoscopic submucosal dissection (ESD) because of a non-lifting sign caused by biopsies 1 . However, duodenal ESD is challenging, even for experts 2 ...
February 8, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29415287/residual-adenoma-after-cold-snare-polypectomy-for-small-colorectal-adenomas-a-prospective-clinical-study
#6
Daisuke Maruoka, Makoto Arai, Naoki Akizue, Kentaro Ishikawa, Shingo Kasamatsu, Takashi Taida, Hideaki Ishigami, Kenichiro Okimoto, Keiko Saito, Tomoaki Matsumura, Tomoo Nakagawa, Tatsuro Katsuno, Naoya Kato
BACKGROUND:  Endoscopic resection of all colonic adenomas prevents the occurrence of colon cancer and death. The European Society of Gastrointestinal Endoscopy Clinical Guideline recommends resection of all polyps predicted to be adenomas and cold snare polypectomy (CSP) for removal of adenomas ≤ 9 mm on the basis of safety; however, it also states that this recommendation lacks adequate evidence of efficacy. The residual adenoma rate after resection is an important indicator of efficacy, but there have been no reports showing this prospectively...
February 7, 2018: Endoscopy
https://www.readbyqxmd.com/read/29409923/hot-snare-polypectomy-with-or-without-saline-solution-epinephrine-lift-for-the-complete-resection-of-small-colorectal-polyps
#7
Hyun-Soo Kim, Ho Yeon Jung, Hong Jun Park, Hee Man Kim, Jae Ho Seong, Yong Seok Kang, Mee Yon Cho, Min Heui Yu, Dae Ryong Kang
BACKGROUND: /Aim: The criterion standard polypectomy technique for the complete removal of small colorectal polyps has not yet been established. This study aimed to compare the complete resection rate of hot snare polypectomy (HSP) with that of endoscopic mucosal resection (EMR) for small, sessile, or flat polyps. METHODS: Patients with 5-9-mm non-pedunculated colorectal polyps were prospectively randomized to the HSP or EMR group. The presence of residual polyps was assessed by performing histological assessment of 4-quadrant forceps biopsies taken from the edges of the polypectomy site...
February 1, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29406333/a-case-report-of-an-adenomatoid-tumor-of-the-uterus-mimicking-an-endometrioid-adenocarcinoma-on-endometrial-curetting-a-diagnostic-pitfall
#8
Paulette Mhawech-Fauceglia, Damanzoopinder Samroa
Adenomatoid tumors (AT) arising in the female genital tract are usually incidental findings occurring most often in the fallopian tube and uterine serosa and rarely in the myometrium. In the myometrium, they appear grossly as deep seated, small, firm, ill circumscribed nodules mimicking leiomyoma. Histologically they show a glandular and invasive pattern making well-differentiated/low-grade endometrioid adenocarcinoma a major differential diagnosis. However, this differential is rarely encountered in practice because myometrial AT is usually seen on the hysterectomy specimen, because of their anatomic position in the deep myometrium, and only rarely in endometrial curettings...
February 5, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29399614/high-complete-resection-rate-for-pre-lift-and-cold-biopsy-of-diminutive-colorectal-polyps
#9
Sam A O'Connor, Trevor N Brooklyn, Paul D Dunckley, Roland M Valori, Ruth Carr, Chris Foy, Thusitha Somarathna, Lukasz A Adamczyk, Neil A Shepherd, John T Anderson
Background and study aims:  The majority of polyps removed at colonoscopy are diminutive (≤ 5 mm) to small (< 10 mm) and there are few guidelines for the best way for these polyps to be removed. We aimed to assess the feasibility and effectiveness of cold biopsy forceps polypectomy with pre-lift (CBPP) for polyps ≤ 7 mm. Our aims were to assess completeness of histological resection of this technique, to identify factors contributing to this and assess secondary considerations such as timing, retrieval and complication rates...
February 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29398588/preliminary-report-surgical-outcomes-following-genitoplasty-in-children-with-moderate-to-severe-genital-atypia
#10
K J Bernabé, N J Nokoff, D Galan, D Felsen, C E Aston, P Austin, L Baskin, Y-M Chan, E Y Cheng, D A Diamond, R Ellens, A Fried, S Greenfield, T Kolon, B Kropp, Y Lakshmanan, S Meyer, T Meyer, A M Delozier, L L Mullins, B Palmer, A Paradis, P Reddy, K J Scott Reyes, M Schulte, J M Swartz, E Yerkes, C Wolfe-Christensen, A B Wisniewski, D P Poppas
INTRODUCTION: Prior studies of outcomes following genitoplasty have reported high rates of surgical complications among children with atypical genitalia. Few studies have prospectively assessed outcomes after contemporary surgical approaches. OBJECTIVE: The current study reported the occurrence of early postoperative complications and of cosmetic outcomes (as rated by surgeons and parents) at 12 months following contemporary genitoplasty procedures in children born with atypical genitalia...
February 1, 2018: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29394742/-a-case-of-duodenal-cancer-with-familial-adenomatous-polyposis
#11
Takafumi Yachi, Taiichi Wakiya, Keinosuke Ishido, Daisuke Kudo, Norihisa Kimura, Kenichi Hakamada
A 34-year-old man was diagnosed with familial adenomatous polyposis(FAP)in September 2011, and he underwent endoscopic mucosal resection(EMR)due to multiple polyps in the duodenum and small intestine. Three months later, duodenal cancer was found, and he underwent a subsequent EMR. The pathological findings showed residual cancer cells in the lateral margin; therefore, EMR was performed again. Total colectomy and partial resection of the small intestine was performed in December 2012. Esophagogastroduodenoscopy(EGD)was then performed every 3-6 months, and EMR was performed 4 times...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29393134/safety-of-cold-polypectomy-for-colorectal-polyps-in-patients-on-antithrombotic-medication
#12
Mio Matsumoto, Shinji Yoshii, Taku Shigesawa, Masayoshi Dazai, Manabu Onodera, Mototsugu Kato, Naoya Sakamoto
BACKGROUND: The cold polypectomy (CP) technique has been increasingly used in recent years. However, there have been few studies about post-polypectomy bleeding (PPB) in patients who underwent CP and who were on antithrombotic drugs. The objective of this study was to determine the safety of CP in patients on antithrombotic medication. METHODS: The subjects were patients who underwent CP in our hospital between April 2014 and March 2016. PPB rates were examined in relation to the use of antithrombotic medication...
February 1, 2018: Digestion
https://www.readbyqxmd.com/read/29377243/clinical-and-endoscopic-evaluations-of-sessile-serrated-adenoma-polyps-with-cytological-dysplasia
#13
Wataru Sano, Takahiro Fujimori, Kazuhito Ichikawa, Hironori Sunakawa, Takahiro Utsumi, Mineo Iwatate, Noriaki Hasuike, Santa Hattori, Hidekazu Kosaka, Yasushi Sano
BACKGROUND AND AIM: Although sessile serrated adenoma/polyps (SSA/Ps) are considered to be premalignant lesions and rapidly progress to carcinomas after they develop cytological dysplasia (CD), a treatment strategy for SSA/Ps in Asian countries is still being debated and has not yet been established. The present study aimed to propose a treatment strategy for SSA/Ps. METHODS: Histopathological data of patients, who underwent colonoscopy at our center between January 2011 and December 2016, were reviewed...
January 29, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29369900/a-pattern-based-approach-combining-tumor-morphology-on-mri-with-distinct-signal-patterns-on-diffusion-weighted-imaging-to-assess-response-of-rectal-tumors-after-chemoradiotherapy
#14
Doenja M J Lambregts, Andrea Delli Pizzi, Max J Lahaye, Joost J M van Griethuysen, Monique Maas, Geerard L Beets, Frans C H Bakers, Regina G H Beets-Tan
BACKGROUND: Diffusion-weighted imaging is increasingly used in rectal cancer MRI to assess response after chemoradiotherapy. Certain pitfalls (eg, artefacts) may hamper diffusion-MRI assessment, leading to suboptimal diagnostic performance. Combining diffusion-weighted MRI with the underlying morphology on standard (T2-weighted) MRI may help overcome these pitfalls. OBJECTIVE: The purpose of this study was to evaluate the diagnostic performance of a pattern-based approach combining tumor morphology on T2-weighted MRI with distinct diffusion-weighted imaging signal patterns to assess response after chemoradiotherapy in rectal cancer...
January 23, 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29363535/improved-adenoma-detection-with-endocuff-vision-the-adenoma-randomised-controlled-trial
#15
Wee Sing Ngu, Roisin Bevan, Zacharias P Tsiamoulos, Paul Bassett, Zoë Hoare, Matthew D Rutter, Gayle Clifford, Nicola Totton, Thomas J Lee, Arvind Ramadas, John G Silcock, John Painter, Laura J Neilson, Brian P Saunders, Colin J Rees
OBJECTIVE: Low adenoma detection rates (ADR) are linked to increased postcolonoscopy colorectal cancer rates and reduced cancer survival. Devices to enhance mucosal visualisation such as Endocuff Vision (EV) may improve ADR. This multicentre randomised controlled trial compared ADR between EV-assisted colonoscopy (EAC) and standard colonoscopy (SC). DESIGN: Patients referred because of symptoms, surveillance or following a positive faecal occult blood test (FOBt) as part of the Bowel Cancer Screening Programme were recruited from seven hospitals...
January 23, 2018: Gut
https://www.readbyqxmd.com/read/29337039/the-presence-of-small-and-diminutive-proximal-hyperplastic-polyps-is-associated-with-higher-rates-of-synchronous-advanced-neoplasia-compared-with-patients-without-serrated-lesions
#16
Hamoudah Thayer, Ma Karen, Esteban Marcus, Hayat Waqas, Mahon Brett, Jakate Shriram, Melson Joshua
BACKGROUND: The association of proximal small and diminutive hyperplastic polyps (HPs) with synchronous neoplasia (AN) is not well defined. However, sessile serrated polyps, even when small, are known to portend synchronous neoplastic risk. Currently, when proximal small hyperplastic polyps are detected, the USMTF does not recommend a change in surveillance interval. We aimed to compare the rates of synchronous AN in a screening colonoscopy cohort of patients with small and then diminutive proximal HPs in comparison, first to a cohort absent any serrated or proximal hyperplastic polyps, and then in comparison with a cohort with small proximal sessile serrated polyps (SSPs)...
January 11, 2018: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29325750/double-balloon-enteroscopy-dbe-in-patients-presenting-with-obscure-gastrointestinal-bleeding-ogib
#17
Esmat Sheba, Ali Farag, Wael Aref, Shaimaa Elkholy, Omar Ashoush
BACKGROUND AND STUDY AIMS: Obscure gastrointestinal bleeding (OGIB) is defined as bleeding of unknown origin that persists or recurs after an initial negative investigation. Identifying the source of OGIB represents a diagnostic challenge that is frequently focused on visualizing the small intestine. Conventional diagnostic methods, such as push enteroscopy, small-bowel follow-through, radionuclide scanning, and angiography, each exhibit inherent limitations. Double balloon enteroscopy (DBE) was designed specifically to evaluate the entire small bowel...
January 8, 2018: Arab Journal of Gastroenterology: the Official Publication of the Pan-Arab Association of Gastroenterology
https://www.readbyqxmd.com/read/29316784/clusterin-induces-muc5ac-expression-via-activation-of-nf-%C3%AE%C2%BAb-in-human-airway-epithelial-cells
#18
Chang Hoon Bae, Hyung Gyun Na, Yoon Seok Choi, Si-Youn Song, Yong-Dae Kim
Objectives: Clusterin (CLU) is known as apolipoprotein J, and has three isoforms with different biological functions. CLU is associated with various diseases such as Alzheimer disease, atherosclerosis, and some malignancies. Recent studies report an association of CLU with inflammation and immune response in inflammatory airway diseases. However, the effect of CLU on mucin secretion of airway epithelial cells has not yet been understood. Therefore, the effect and brief signaling pathway of CLU on MUC5AC (as a major secreted mucin) expression were investigated in human airway epithelial cells...
January 11, 2018: Clinical and Experimental Otorhinolaryngology
https://www.readbyqxmd.com/read/29290324/-mucosal-schwann-cells-hamartoma-review-of-a-recently-described-entity
#19
Francisco García-Molina, José Antonio Ruíz-Macia, Joaquin Sola
Neural lesions of the colon may be masses (schwannomas and neurofibromas) or, more frequently, small polyps including perineuromas, ganglioneuromas and granular cell tumors. Some neural lesions are associated with congenital syndromes (neurofibromatosis-1, multiple endocrine neoplasia-2B). Recently, a new entity has been described named mucosal Schwann cell hamartoma, consisting of an intramucosal neural proliferation; to date, less than forty cases have been reported. We report a further case in a patient from whom a polyp was extirpated during colonoscopy screening...
January 2018: Revista Española de Patología
https://www.readbyqxmd.com/read/29278867/optical-diagnosis-for-colorectal-polyps-a-useful-technique-now-or-in-the-future
#20
REVIEW
Ignasi Puig, Tonya Kaltenbach
In the last few years, interest in the optical diagnosis of colorectal polyps has increased among gastroenterologists. Several studies have shown that the optical diagnosis of small colorectal polyps is safe and feasible in routine clinical practice and is comparable to histopathology. The Narrow-band Imaging International Colorectal Endoscopic Classification provides a validated criterion for the classification of neoplastic and nonneoplastic polyps as well as polyps with deep submucosal invasion using narrow band imaging during real-time colonoscopy...
December 28, 2017: Gut and Liver
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