Abstract
The diagnostic criteria for Barrett's disease have changed very considerably during the last 10 years. Classically, the definition asked for columnar epithelium in the lower esophagus extending for at least 3 cm proximally. Now, the diagnosis rests on the finding of specialised intestinal metaplasia, i.e. columnar epithelium with goblet cells, in the esophagus, regardless of the extension. This is important because it is this type of metaplasia that is associated with an increased risk for the development of esophageal adenocarcinoma and esophageal adenocarcinoma is the tumor with the fastest rising incidence in the western world in recent years. The criteria of the current definition of Barrett's esophagus are described in detail and the implications this change in definition carries for screening and surveillance of patients is discussed.
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