Barrett'S Esophagus 2024 Neet. The main risk factors for barrett's. Barrett's esophagus occurs when the normal cells that line the lower part of the esophagus (called squamous cells) are replaced by a different cell type (called intestinal cells).

Lower 2 cm of the esophagus is lined by columnar epithelium. Barrett’s esophagus is the precursor to esophageal.