Read by QxMD icon Read

Anal canal

Robert N Goldstone, Shirin R Hasan, Steven Drury, Teresa M Darragh, Annemieke van Zante, Stephen E Goldstone
PURPOSE: Radiofrequency ablation (RFA) effectively treats esophageal high-grade dysplasia, but its efficacy in treating anal canal high-grade squamous intraepithelial lesions (HSILs) is unsubstantiated. This prospective study assessed the safety and efficacy of applying hemi-circumferential RFA to anal canal HSIL. METHODS: Twenty-one HIV-negative participants with HSIL occupying ≤ half the anal canal circumference were treated with hemi-circumferential anal canal RFA...
October 21, 2016: International Journal of Colorectal Disease
Kazuhiko Yoshimatsu, Gakuji Osawa, Hajime Yokomizo, Yuki Yano, Sachiyo Okayama, Akiko Sakuma, Masaya Satake, Yasufumi Yamada, Shinichi Asaka, Takebumi Usui, Kentaro Yamaguchi, Shunichi Shiozawa, Takeshi Shimakawa, Takao Katsube, Yoshihiko Naritaka
A 78-year-old man visited our hospital with a prolapsed hemorrhoid. He was referred to the dermatology unit due to the thickness and redness of the perianal skin. He was diagnosed as having extra mammary Paget's disease by skin biopsy. After a biopsy of the anal polyp was performed to investigate the primary site, he was diagnosed with early anal canal cancer with Pagetoid spread and underwent a radical operation. Abdominoperineal resection with skin(D2 prx D3 lymphadenectomy) was performed with perineal reconstruction using a gracilis muscle graft...
October 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Ashish A Deshmukh, Hui Zhao, Prajnan Das, Elizabeth Y Chiao, Yi-Qian Nancy You, Luisa Franzini, David R Lairson, Michael D Swartz, Sharon H Giordano, Scott B Cantor
OBJECTIVE: A comparative assessment of treatment alternatives for T1N0 anal canal cancer has never been conducted. We compared the outcomes associated with the treatment alternatives-chemoradiotherapy (CRT), radiotherapy (RT), and surgery or ablation techniques (surgery/ablation)-for T1N0 anal canal cancer. MATERIALS AND METHODS: This retrospective cohort study was conducted using the Surveillance, Epidemiology and End Results (SEER) registries linked with Medicare longitudinal data (SEER-Medicare database)...
October 17, 2016: American Journal of Clinical Oncology
Michele Limoges-Gonzalez, Amar Al-Juburi
Anal squamous cell cancer (SCC) is a relatively uncommon cancer in the United States. Anal SCC has long been associated with human immunodeficiency virus (HIV) positivity and/or men who have sex with men. The incidence of anal SCC has been increasing in both genders regardless of HIV status. Few clinicians are aware that white women, when not controlling for gender and sexual preference together, have the highest incidence of anal SCC. Anal intraepithelial neoplasia (AIN), dysplastic cells of the anal canal due to human papilloma virus infection, is believed to be the precursor to anal SCC...
October 4, 2016: Journal of Clinical Gastroenterology
S Haas, C Brock, K Krogh, M Gram, L Lundby, A M Drewes, S Laurberg
BACKGROUND: It has been suggested that the effects of sacral nerve stimulation against fecal incontinence involve neuromodulation at spinal or supraspinal levels. OBJECTIVE: This study aims to investigate the afferent sensory pathways from the anorectum before and during sacral nerve stimulation. DESIGN: This is an explorative study. PATIENTS: Fifteen women with idiopathic fecal incontinence (mean age, 58 ± 12.2 years) were selected...
November 2016: Diseases of the Colon and Rectum
Van Morris, Cathy Eng
Squamous cell carcinoma of the anal canal (SCCA) remains a less common gastrointestinal malignancy despite a continued increase in the annual incidence in the United States and globally. The vast majority of all cases are attributed to persistent infection and integration into host cell DNA by human papillomavirus (HPV). For patients with metastatic anal cancer, there is currently no accepted consensus standard of care. Given the viral etiology associated with the oncogenesis of this tumor, great interest exists for the development of immunotherapy as a novel approach to improving clinical outcomes for patients afflicted with this disease...
October 2016: Journal of Gastrointestinal Oncology
Yuzo Nagai, Sinsuke Kazama, Daisuke Yamada, Takuya Miyagawa, Koji Murono, Koji Yasuda, Takeshi Nishikawa, Toshiaki Tanaka, Tomomichi Kiyomatsu, Keisuke Hata, Kazushige Kawai, Yuri Masui, Hiroaki Nozawa, Hironori Yamaguchi, Soichiro Ishihara, Takafumi Kadono, Toshiaki Watanabe
Treatment of perianal and vulvar extramammary Paget disease (EMPD), rare intraepithelial malignancies, is often challenging because of its potential to spread into the anal canal. However, there is still no consensus regarding the optimal resection margin within the anal canal. Between 2004 and 2014, six patients (three with perianal EMPD and three with vulvar EMPD) in which the spread of Paget cells into the anal canal was highly suspected were referred to our department. To evaluate the disease extent within the anal canal, preoperative mapping biopsy of the anal canal was performed in five out of six patients...
October 2016: Annals of Dermatology
Takahiko Ito, Shuko Morita, Naoto Shimeno, Keiichiro Uehara, Yukihiro Imai, Tetsuro Inokuma
Squamous cell carcinoma (SCC) of the anal canal is seldom diagnosed at an early stage. Chemoradiation therapy is a standard in Europe and the United States, though in squamous cell carcinoma there is no evidence-based therapy. In Japan, endoscopic submucosal dissection (ESD) is the standard minimally invasive treatment for early stage cancer of the digestive tract, including the colorectum. Therefore, if the lesion is diagnosed at an early stage, ESD may be selected for anal canal lesions. We experienced two cases of early stage anal canal cancer in which the diagnosis and the extent of the lesions were confirmed using magnifying endoscopy with narrow-band imaging (NBI), as well as performing ESD...
October 13, 2016: Clinical Journal of Gastroenterology
David O Prichard, Taehee Lee, Gopanandan Parthasarathy, Joel G Fletcher, Alan R Zinsmeister, Adil E Bharucha
BACKGROUND & AIMS: Contrary to conventional wisdom, the rectoanal gradient during evacuation is negative in many healthy people, undermining the utility of anorectal high resolution manometry (HRM) for diagnosing defecatory disorders. We aimed to compare HRM and magnetic resonance imaging (MRI) for assessing rectal evacuation and structural abnormalities. METHODS: We performed a retrospective analysis of 118 patients (all female; 51 with constipation, 48 with fecal incontinence, and 19 with rectal prolapse; age, 53±1 years) assessed by HRM, the rectal balloon expulsion test (BET), and MRI at Mayo Clinic, Rochester, Minnesota, from February 2011 through March 2013...
October 5, 2016: Clinical Gastroenterology and Hepatology
Lakpa Tamang, Bikramjit Sinha
Physoschistura walongensis, new species, is described from the bank of the Lohit River (upper Brahmaputra River basin) in the eastern most part of the state Arunachal Pradesh at an altitude of 1096 m above sea level. The new species is distinguished from its congeners by the following combination of characters: an incomplete lateral line extending at least to the anal-fin origin and maximally to the tip of the adpressed anal fin, with 71-89 canal pores; a rounded suborbital flap, the posterior margin of which slightly exceeds the anterior orbital margin, occupying less orbital area; body with 11-18 irregular vertical bars on the flank, bars more irregular on the anterior portion of the body than on posterior; 1-4 bars bifurcate ventrally; 1-4 saddles along the ventrolateral side of the body; a moderately thick W-shaped basicaudal bar; a prominent axillary pelvic fin lobe; dark brown mottled markings on the head; and forked caudal fin with 9 upper + 8 lower branched rays...
October 4, 2016: Zootaxa
Shilpa Sharma, Devendra K Gupta
Congenital H-type fistula is a rare congenital rectourogenital connection with an external anal opening in a normal or ectopic position. A systematic review was done to study the anatomical types of congenital H-type fistula, embryology, clinical presentation, relative gender distribution, associated anomalies, investigative modalities, and recent advances in treatment of these lesions. A PubMed search included H-type anorectal malformation; H-type anorectal malformations; H-type anorectal; and H-type congenital anorectal that gave 9;43;76;26 abstracts, respectively...
October 1, 2016: Pediatric Surgery International
Nicolas Bekkouche, Katrine Worsaae
BACKGROUND: Diuronotus is one of the most recently described genera of Paucitubulatina, one of the three major clades in Gastrotricha. Its morphology suggests that Diuronotus is an early branch of Paucitubulatina, making it a key taxon for understanding the evolution of this morphologically understudied group. Here we test its phylogenetic position employing molecular data, and provide detailed descriptions of the muscular, nervous, and ciliary systems of Diuronotus aspetos, using immunohistochemistry and confocal laser scanning microscopy...
2016: Zoological Letters
A Amini, B Jones, T Schefter, K A Goodman
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
M K Garg, F Zhao, J Lee, J Sparano, J Palefsky, D Henry, W Wachsman, L Rajdev, D Aboulafia, E Mitchell, A Onitilo, B El-Rayes, N Nabbout, T Fitzgerald, R Mitsuyasu, A B Benson, L A Kachnic
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
J C Hong, J Eng, A Faught, K Higgins, Y Cui, F F Yin, S K Das, B Czito, C G Willett, M Palta
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
C M Mendenhall, M S Agarwal, A R Rao, S N Rizvi, J Kirwan, C G Morris, A T Johns, W J McAfee, D A Jones, W M Mendenhall
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
A Cordoba, A Escande, T Leroy, X Mirabel, B Coche-Dequéant, E Lartigau
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Sandra Barbeiro, Catarina Martins, Cláudia Gonçalves, Paulo Alves, Inês Gil, Manuela Canhoto, Filipe Silva, Isabel Cotrim, Cristina Amado, Liliana Eliseu, Helena Vasconcelos
Acute ischemia of the rectum or anal canal resulting in necrosis is extremely uncommon because both the rectum and the anal canal have excellent blood supplies. We present a case with spontaneous necrosis of the anal canal without rectal involvement. Surgical debridement was accomplished, and the recovery was uneventful. The patient was elderly, with probable atherosclerotic arterial disease, and presented with hypotension. Due to the lack of other precipitating factors, the hypoperfusion hypothesis seems to be the most suitable in this case...
August 2016: Annals of Coloproctology
Andrea Bischoff, Jason Frischer, Jennifer Leslie Knod, Belinda Dickie, Marc A Levitt, Monica Holder, Lyndsey Jackson, Alberto Peña
INTRODUCTION: Fecal incontinence after the surgical repair of Hirschsprung disease is a potentially preventable complication that carries a negative impact on patient's quality of life. METHODS: Patients that were previously operated for Hirschsprung disease and presented to our bowel management clinic with the complaint of fecal incontinence were retrospectively reviewed. All patients underwent a rectal examination under anesthesia looking for anatomic explanations for their incontinence...
September 4, 2016: Journal of Pediatric Surgery
Ayşe Erden, Elif Peker, Zeynep Bıyıklı Gençtürk
: OBJECTıVE: To compare the morphometric data relating to the muscular structures of the anal canal, in patients with chronic anal fissure and in control group, examined at a 3.0 Tesla MR system. SUBJECTS AND METHODS: Forty-seven consecutive patients with chronic anal fissure and randomly selected 40 patients who had no claims for perianal disease during their life time were included in the study. T2-weighted sagittal, high-resolution (HR) T2-weighted, and contrast-enhanced fat-suppressed T1-weighted oblique axial and oblique coronal images were retrospectively analyzed by two observers in consensus...
September 13, 2016: Abdominal Radiology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"