In this article, the main bacterial and viral STDs that affect the

anus and rectum are discussed, including their prevalence, presentation, and treatment. Pablo A. Bejarano, Marylise Boutros, and Mariana Berho Diagnosis, follow up, and treatment of anal intraepithelial neoplasia are complex and not standardized. This may be partly caused by poor communication of biopsy and cytology findings between pathologists and clinicians as a result of a disparate and confusing terminology used to classify these lesions. This article focuses on general aspects of epidemiology and on clarifying the current terminology of intraepithelial squamous neoplasia, its relationship with human papilloma virus infection, and the current methods that exist to diagnose and treat this condition. Ankit Sarin and Z-VAD-FMK order Bashar Safar Radiation damage to the rectum following radiotherapy for pelvic malignancies can range from acute dose-limiting side effects to major morbidity affecting health-related quality of life. No standard guidelines exist for diagnosis and management of radiation proctitis. This article reviews the definitions, staging, and clinical features of radiation proctitis, Everolimus molecular weight and summarizes the modalities available for the treatment

of acute and chronic radiation proctitis. Because of the paucity of well-controlled, blinded, randomized studies, it is not possible to fully assess the comparative efficacy of the different approaches to management. However, the evidence and rationale for use of the different

strategies are presented. Index 927 “
“Charles J. Kahi Douglas K. Rex many The primary goal of most colonoscopies, whether performed for screening, surveillance, or diagnostic examinations (those performed for symptoms or positive screening tests other than colonoscopy) is the detection of neoplasia and its subsequent removal by either endoscopic polypectomy or referral for surgical resection. Unfortunately, colonoscopy has proved to be a highly operator-dependent procedure with regard to detection. Variable detection results in some of the cancers that occur in the interval before the next colonoscopy. David G. Hewett Video demonstrating cold snare polypectomy technique in small and diminutive polyps accompanies this article Colonoscopic polypectomy is fundamental to effective colonoscopy. Through its impact on the polyp-cancer sequence, colonoscopic polypectomy reduces colorectal cancer incidence and mortality. Because it eliminates electrosurgical risk, cold snaring has emerged as the preferred technique for most small and all diminutive polyps. Few clinical trial data are available on the effectiveness and safety of specific techniques. Polypectomy technique seems highly variable between endoscopists, with some techniques more effective than others are. Further research is needed to investigate operator variation in polypectomy outcomes and establish an evidence base for best practice.