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https://www.readbyqxmd.com/read/28454426/prevalence-of-human-papillomavirus-infection-of-the-anal-canal-in-women-a-prospective-analysis-of-high-risk-populations
#1
Bernd P Kost, Jörg Hofmann, Susanne Stoellnberger, Florian Bergauer, Thomas Blankenstein, Irene Alba-Alejandre, Angela Stein, Claudia Stuckart, Katharina Weizsäcker, Ioannis Mylonas, Sven Mahner, Andrea Gingelmaier
Infection with certain types of human papillomavirus (HPV) has been associated with the development of cervical and anal cancer. Worldwide, the incidence of anal cancer has increased markedly. The present study aimed to evaluate the prevalence of HPV infection of the uterine cervix and anal canal in human immunodeficiency virus (HIV)- and non-HIV-infected risk populations. Cervical and anal HPV swabs and cytology samples were collected from 287 patients at the University Hospital of Munich, Germany between 2011 and 2013...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453692/safety-and-antitumor-activity-of-the-anti-pd-1-antibody-pembrolizumab-in-patients-with-recurrent-carcinoma-of-the-anal-canal
#2
P A Ott, S A Piha-Paul, P Munster, M J Pishvaian, E M J van Brummelen, R B Cohen, C Gomez-Roca, S Ejadi, M Stein, E Chan, M Simonelli, A Morosky, S Saraf, K Emancipator, M Koshiji, J Bennouna
Background: Safety and efficacy of pembrolizumab, a humanized programmed death 1 monoclonal antibody, was assessed in KEYNOTE-028, a multicohort, phase Ib trial for patients with programmed death ligand 1 (PD-L1)-positive advanced solid tumors. We report results for the cohort of patients with advanced anal carcinoma. Patients and methods: Patients with PD-L1-positive tumors (≥1%) received intravenous pembrolizumab 10 mg/kg once every 2 weeks for up to 2 years or until confirmed progression or unacceptable toxicity...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28424479/wnt-%C3%AE-catenin-signaling-pathway-a-major-player-in-the-injury-induced-fibrosis-and-dysfunction-of-the-external-anal-sphincter
#3
M Raj Rajasekaran, Sadhana Kanoo, Johnny Fu, Valmik Bhargava, Ravinder K Mittal
Wnt-β catenin is an important signaling pathway in the genesis of fibrosis in many organ systems. Our goal was to examine the role of Wnt pathway in the external anal sphincter (EAS) injury-related fibrosis and muscle dysfunction. New Zealand White female rabbits were subjected to surgical EAS myotomy and administered local injections of either a Wnt antagonist (sFRP-2; daily for 7 days) or saline. Anal canal pressure and EAS length-tension (L-T) were measured for 15 weeks after which the animals were sacrificed...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28410787/efficacy-of-nitroglycerine-ointment-in-the-treatment-of-pediatric-anal-fissure
#4
Ali E Joda, Ali F Al-Mayoof
BACKGROUND: Anal fissure is the most common anal disease in children. In the past few decades, the understanding of its pathophysiology has led to a progressive reduction in invasive procedures in favor of conservative treatment based on stool softeners and the relaxation of the anal sphincter. This randomized controlled study assessed the safety and efficacy of nitroglycerine (NTG) ointment in the treatment of pediatric anal fissure, which had not yet been proved. PATIENTS AND METHODS: An unequal randomized controlled study included 105 pediatric patients with anal fissure who had presented to the private and outpatient clinics of the Central Teaching Hospital of Pediatrics during the period from February 2015 to May 2016...
April 8, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28408327/morbidity-and-mortality-after-surgery-for-nonmalignant-colorectal-polyps
#5
Anne F Peery, Nicholas J Shaheen, Katherine S Cools, Todd H Baron, Mark Koruda, Joseph A Galanko, Ian S Grimm
BACKGROUND & AIMS: Despite evidence that most non-malignant colorectal polyps can be managed endoscopically, a substantial proportion of patients with a non-malignant colorectal polyp are still sent to surgery. Risks associated with this surgery are not well characterized. We aimed to describe 30-day post-operative morbidity and mortality and to explore risk factors for adverse events in patients undergoing surgical resection for non-malignant colorectal polyps. METHODS: We analyzed data collected prospectively as part of the National Surgical Quality Improvement Program...
April 10, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28405717/-differential-indications-for-ileoanal-pouch-anastomosis-ulcerative-colitis-familial-adenomatous-polyposis-synchronous-colorectal-cancer-crohn-s-disease-constipation
#6
A Fürst
Ileoanal pouch anastomosis is the procedure of choice for patients with drug refractory ulcerative colitis, indeterminate colitis and familial adenomatous polyposis (FAP). In selected patient groups this procedure is a treatment option for patients with Crohn's disease, hereditary nonpolyposis colorectal cancer (HNPCC), synchronous colorectal cancer and for severe colorectal constipation refractory to conservative drug treatment. The pouch procedure provides the opportunity to avoid a permanent ileostomy. The majority of surgeons prefer the ileal J‑pouch as the construction is the easiest to perform and complications and dysfunction rates are low...
April 12, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28379306/anal-neoplasia-in-inflammatory-bowel-disease-classification-proposal-epidemiology-carcinogenesis-and-risk-management-perspectives
#7
Andrew Wisniewski, Jean-Francois Fléjou, Laurent Siproudhis, Laurent Abramowitz, Magali Svrcek, Laurent Beaugerie
Patients with inflammatory bowel disease [IBD] may develop, similarly to individuals from general population, rare cases of human papilloma virus [HPV]-related anal canal squamous cell carcinoma [SCC] and intra-epithelial precursor lesions, as well as very rare cases of anal canal adenocarcinoma. Patients with chronic perianal Crohn's disease [CD] are at substantial risk of developing SCC or adenocarcinoma from the fistula-lining epithelium, as well as SCC or adenocarcinoma arising from chronic anorectal ulcerations or strictures...
March 30, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28367179/comparison-of-two-procedures-for-symptomatic-hemorrhoidal-disease-ligation-under-vision-and-ferguson-hemorrhoidectomy-a-retrospective-cohort-study
#8
Hakan Demir, Kerem Karaman, Metin Ercan, Havva Belma Kocer, Fehmi Celebi
OBJECTIVE: To compare Ligation under Vision (LUV) with Ferguson Hemorrhoidectomy (FH) in patients with Grade II, III and IV hemorrhoidal diseases according to their postoperative outcomes. METHODS: Between July 2008 and August 2014, 155 patients underwent FH and 120 patients LUV, in Sakarya University Teaching and Research Hospital. Our retrospective analysis focuses on postoperative complications, postoperative pain and rate of recurrence. In LUV procedure, submucosal tissue of the hemorrhoidal pile base was transfixed using absorbable sutures under direct vision through anoscope in the Jackknife position...
January 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28365084/perianal-synovial-sarcoma-treated-postoperatively-with-iodine-125-brachytherapy-technical-details
#9
Susan Tovey, Clare Stannard, Gerrie Maree, Robin Hiscock, Charlie Thomson, Eugenio Panieri, Paul Goldberg
PURPOSE: A 23-year-old lady had an incompletely excised perianal sarcoma. Brachytherapy as the sole treatment, rather than further surgery or external beam radiotherapy, was considered to be the best option with the least morbidity. METHODS AND MATERIALS: Although brachytherapy techniques with iridium-192 for anal and rectal carcinoma are well described using a perianal template, the size of the template was not suitable for a two-plane implant that needed to be in situ for about 4 days...
March 29, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28350724/prevalence-and-predictors-of-unsatisfactory-anal-cytology-tests-in-a-cohort-of-gay-and-bisexual-men-in-sydney-australia-baseline-findings-from-the-study-of-the-prevention-of-anal-cancer-spanc
#10
David J Templeton, Jennifer M Roberts, I Mary Poynten, Carmella Law, Richard J Hillman, Annabelle Farnsworth, Christopher K Fairley, Sepehr N Tabrizi, Suzanne M Garland, Andrew E Grulich, Fengyi Jin
Anal cytology has been suggested as a screening test for the anal cancer precursor high-grade squamous intraepithelial lesion (HSIL). We aimed to assess the prevalence and predictors of initial unsatisfactory anal cytology tests ('unsats'). The Study of the Prevention of Anal Cancer is a natural history study of anal human papillomavirus (HPV) and precancerous lesions among gay and bisexual men (GBM) of at least 35 years in Sydney, Australia. At each study visit, an anal swab is collected for cytological testing...
May 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28333258/anal-neoplasia-in-inflammatory-bowel-disease-classification-proposal-epidemiology-carcinogenesis-and-risk-management-perspectives
#11
Andrew Wisniewski, Jean-Francois Fléjou, Laurent Siproudhis, Laurent Abramowitz, Magali Svrcek, Laurent Beaugerie
Patients with inflammatory bowel disease (IBD) may develop, similarly to individuals from general population, rare cases of HPV-related anal canal squamous cell carcinoma (SCC) and their intra-epithelial precursor lesions, as well as very rare cases of anal canal adenocarcinoma. Patients with chronic perianal Crohn's disease (CD) are at substantial risk of developing SCC or adenocarcinoma from the fistula-lining epithelium, as well as SCC or adenocarcinoma arising from chronic anorectal ulcerations or strictures...
March 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28302173/squamous-cell-carcinoma-arising-from-chronic-sacrococcygeal-pilonidal-disease-a-case-report
#12
Nick Michalopoulos, Konstantinos Sapalidis, Styliani Laskou, Evangelia Triantafyllou, Georgia Raptou, Isaak Kesisoglou
BACKGROUND: Sacrococcygeal pilonidal disease is a chronic, well-recognized entity, characterized by the recurrent formation of an abscess or draining sinus over the sacrococcygeal area. It is one of the most common surgical problems. Rarely, chronic inflammation and recurrent disease leads to malignant transformation, most commonly to squamous cell carcinoma (SCC). CASE PRESENTATION: We describe an extremely unusual case of SCC developing in a 60-year-old patient with a chronic pilonidal sinus complicated by an anal fistula...
March 17, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28291401/pelvic-insufficiency-fracture-pif-incidence-in-patients-treated-with-intensity-modulated-radiation-therapy-imrt-for-gynaecological-or-anal-cancer-single-institution-experience-and-review-of-the-literature
#13
REVIEW
Louis Bazire, Haoping Xu, Jean-Philippe Foy, Malika Amessis, Caroline Malhaire, Kim Cao, Anne De La Rochefordiere, Youlia M Kirova
OBJECTIVE: To summarize the results of pelvic insufficiency fracture (PIF) incidence in patients with anal or gynaecological cancer treated by pelvic intensity-modulated radiation therapy (IMRT). METHODS: The clinical and morphological (CT and/or pelvic MRI) characteristics of patients treated by IMRT at our institution between 2007 and 2014 were analyzed. The global incidence of PIF after external beam radiotherapy and the impact of tumour site (gynaecological or anal cancer) were determined...
May 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28275036/predictors-of-nonadherence-to-nccn-guideline-recommendations-for-the-management-of-stage-i-anal-canal-cancer
#14
Adam J Kole, John M Stahl, Henry S Park, Sajid A Khan, Kimberly L Johung
Background: Definitive chemoradiotherapy (CRT) is recommended by the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Anal Carcinoma for all patients with stage I anal canal cancer. Because these patients were not well represented in clinical trials establishing CRT as standard therapy, it is unclear whether NCCN recommendations are being closely followed for stage I disease. This study identified factors that predict for NCCN Guideline-concordant versus NCCN Guideline-discordant care. Methods: Using the National Cancer Data Base, we identified patients diagnosed with anal canal carcinoma from 2004 to 2012 who received concurrent CRT (radiotherapy [RT] 45...
March 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28270879/anal-neuroendocrine-tumor-masquerading-as-external-hemorrhoids-a-case-report
#15
Muhammad Khan, Ahmed Dirweesh, Chikezie Alvarez, Herbert Conaway, Robert Moser
Neuroendocrine tumors in gastrointestinal (GI) tract are a rare source of GI malignancy with an estimated incidence of 2.5 - 5 per 100,000 people per year and the prevalence of 35 per 100,000. In the GI tract, they are located in decreasing order of frequency in appendix, ileum, rectum, stomach, and colon. Those found in the anal region represent just 1% of all malignancies of the anal canal. Their clinical presentation can be widely varying, sometimes being found incidentally with metastatic disease and an unknown primary source...
February 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28267274/utility-of-touch-imprint-cytology-in-the-preoperative-diagnosis-of-malignancy-in-low-resource-setting
#16
Amit Kumar Adhya, Ranjan Mohanty
BACKGROUND: Touch imprint cytology (TIC) is a very rapid, cheap, and easy method used for the rapid evaluation of intraoperative specimens and post mortem cases. This study aims to evaluate its utility in preoperative diagnosis of cancer. METHODS: A total of 476 cases of suspected malignancy of different sites and different histological subtypes were studied. TIC was obtained in all the biopsies and the cytological findings were correlated with the corresponding biopsy diagnosis to evaluate the diagnostic accuracy...
March 7, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28263151/-mucosal-malignant-melanomas-in-the-gastrointestinal-tract-and-urogenital-organs
#17
Mustafa Bashir M Jawad, Kristian Kofoed
The aim of this article is to investigate the latest knowledge of the aetiology, pathogenesis and treatment of mucosal malignant melanomas (MMM) in the gastrointestinal tract (GIT) and urogenital organs. MMM constitute 1.4% of all melanomas with an incidence rate in USA of 2.2 per million a year. MMM in the GIT occur mostly in the anal canal and rectum, but can also occur in the small intestine, gallbladder and the large intestine, though very rarely. Melanomas can occur in almost any part of the urinary tract...
February 27, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28260390/angiotensin-converting-enzyme-inhibitors-induced-angioedema-of-the-small-bowel-mimicking-postoperative-complication
#18
Caroline Lorenzoni Almeida Ghezzi, Tiago Leal Ghezzi, Oly Campos Corleta
BACKGROUND: Angioedema of the small bowel (ASB) is an extremely rare side effect of the angiotensin-converting enzyme inhibitors (ACEI). We present a case of ACEI-induced ASB mimicking postoperative complication. CASE REPORT: a woman who restarted ACEI after laparoscopic abdominoperineal resection of the rectum and anal canal has presented complaints of abdominal pain, nausea and vomiting, and non-acceptance of oral and enteral feeding. Computed tomography scan was performed to rule out surgical complications and has demonstrated an unexplained wall thickening of the proximal small bowel...
March 6, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28255623/anal-canal-duplication-and-triplication-a-rare-entity-with-different-presentations
#19
P Palazon, V Julia, L Saura, I de Haro, M Bejarano, C Rovira, X Tarrado
Anal canal duplication (ACD) is the rarest of gastrointestinal duplications. Few cases have been reported. Most cases present as an opening in the midline, posterior to the normal anus. The aim of our revision is to contribute with eight new cases, some of them with unusual presentations: five presented as the typical form, one with a perianal nodule, and two presented as two separate orifices (anal canal triplication). Complete excision was performed in all patients with no complications. ACD is the most distal and the least frequent digestive duplication...
May 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28247085/morphology-of-the-region-anterior-to-the-anal-canal-in-males-visualization-of-the-anterior-bundle-of-the-longitudinal-muscle-by-transanal-ultrasonography
#20
Yasuo Nakajima, Satoru Muro, Hisayo Nasu, Masayo Harada, Kumiko Yamaguchi, Keiichi Akita
PURPOSE: The anterior bundle of the longitudinal muscle in the region anterior to the anal canal in males has been described, although the anatomical details remain unclear. The present study was undertaken to clarify the precise morphology of the anterior bundle of the longitudinal muscle and its relationship to the surrounding structures, and to visualize the anterior bundle of the longitudinal muscle via transanal ultrasonography. METHODS: Histological examination was carried out using seven male cadavers; an additional three male cadavers were used for transanal ultrasonography, and the ultrasonography images were compared with the actual sagittal sections...
February 28, 2017: Surgical and Radiologic Anatomy: SRA
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