Carcinoma of the Anus: Strategies in Management

Abstract

Abstract Learning Objectives After completing this course, the reader will be able to:Appreciate the evolution of methods of managing anal carcinomas and appropriate selection of modalities to employ in various situations at the present time.Understand methods of integrating chemotherapy and radiation to achieve desirable outcomes.Understand considerations in choice of chemotherapy agents and radiation doses. Access and take the CME test online and receive one hour of AMA PRA category 1 credit at CME.TheOncologist.com The management of anal cancer underwent an interesting transformation over the last two decades. Prior to this period, the standard definitive treatment for carcinoma of the anal canal was abdominal-perineal resection, which necessitated a permanent colostomy. The organ preservation concept appeared following the discovery of a high complete response rate from preoperative combined chemoradiation prior to abdominal-perineal resection. The organ preservation method of treatment rapidly gained popularity and ultimately saved a large number of patients from undergoing abdominal-perineal resection and colostomy. Chemoradiation treatment itself subsequently went through an evolutionary process. Several studies have sought to define the optimal chemotherapeutic regimen as well as radiation treatment dose and fractionation. Ongoing studies attempt to define an optimal treatment regimen that yields a higher cure rate while minimizing toxicity. We review the etiology, epidemiology, and treatment regimens for anal cancer.