Tongue-like Barrett’s esophagus is associated with gastroesophageal reflux disease

Figure 1 The shape of ESEM. We originally divided ESEM into 3 types based on its shape. The W type, in which the ESEM was defined by a columnar epithelium which extended continuously from the gastric lumen to the esophagus, in which the uppermost extent of the visible red columnar epithelium could be observed as a wave-like formation (W). The broken line in the illustration shows the ESEM. The D type, in which the length of basal part of the ESEM (b) was longer than the length of the major part of the ESEM (a; i.e. a < b) The columnar epithelium of the ESEM is observed as a dome-like shape (D). The broken line in the illustration shows the ESEM. The T type in which the length of the major axis of the ESEM (a) is longer than the basal part of ESEM (b; i.e. a ≥ b). The columnar epithelium of the ESEM is observed as a tongue-like shape (T).