摘要
TO THE EDITORWith interest we read the article by Bani-Hani et al enrifled ＂Pathogenesis of columnar-lined esophagus＂, which has been published in the recent issue of World Journal of Gastroenterology. The review profoundly adds to our understanding of columnar-lined esophagus （CLE） and clearly indicates that CLE represents an acquired condition and develops as a consequence of gastroesophageal reflux disease （GERD）. However, it should be pointed out that inclusion of CLE-histopathology helps to define those at risk for dysplastic and malignant transformation. Histopathology characterizes nondysplastic and dyplastic （low-, high grade dysplasia） CLE.
TO THE EDITOR With interest we read the article by Bani-Hani et al entitled 'Pathogenesis of columnar-lined esophagus', which has been published in the recent issue of World Journal of Gastroenterology. The review profoundly adds to our understanding of columnar-lined esophagus (CLE) and
