Conventional contrast studies of the anorectal region have, in recent years, given way to more recently developed imaging techniques such as transrectal ultrasound, endoanal ultrasound, CT and MRI, all of which are able to provide clearer diagnostic images and thus more information on the extent and structure of tumours and similar lesions. This book is a practical text which gives the radiologist and surgeon details of the background information and technical skills needed to understand and perform these new techniques and accurately interpret the images they provide.