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Summary Obesity is a major medical problem both within Australia as well as throughout the developed world. Achievement of weight loss for any individual patient brings an additional desirable benefit of improvement or resolution of a wide range of comorbid conditions. Bariatrics is the branch of medicine that deals with the causes, prevention and treatment of obesity and allied diseases. The term bariatrics was created around 1965, from the Greek root baro (‘weight’ as in barometer), suffix ‐iatr (relating to medical treatment) and suffix ‐ic (‘pertaining to’). Besides the pharmacotherapy of obesity, it is concerned with obesity surgery. Bariatric surgery refers to surgical procedures of the gastrointestinal tract that are designed to induce weight loss. The treatment of obesity traditionally relied on non‐surgical techniques to modify behaviour in regard to diet and exercise. This has variable and limited success. More recently, bariatric surgery has become the most rapidly growing form of treatment for obesity in recent years. In fact, it is the only current therapy that has been shown to achieve major and durable weight loss. It is important for the radiologist to be familiar with the normal anatomical appearance of the more common bariatric operations and to be able to recognise their potential complications on imaging. The aim of this pictorial essay is to give an insight into some of the more common complications of laparoscopic adjustable gastric banding surgery encountered in our centre during the period of 2001–2007.

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