Since its introduction in 1989, anal ultrasound has revolutionised the assessment of anal sphincter injuries and incontinence, and sent shock waves through the obstetric and gynaecology community. It is now seen as an essential part of anorectal physiological testing and absolutely de rigueur prior to anal sphincter surgery. Colorectal surgeons, gastroenterologists, radiologists, and specialist nurses will welcome this excellent handbook.

Clive Bartram, the father of anal endosonography, with Andrea Frudinger, a former research fellow, has put together a series of high quality, mostly 10 MHz, images of the anal canal. The effects of patient position, age, sex, and site of the scanner within the anal canal are beautifully illustrated in the normal and abnormal anus including internal and external anal sphincter injuries, anal sepsis, and anal tumours.

This is a very practical book and an excellent guide to the interpretation of anal ultrasound images and a copy should be in every colorectal department or physiology laboratory in the country.