<prompt> All except one are true regarding Barrets esophagus?More incidence of sq. cell caMetaplasiaColumnar epitheliumInvolves lower oesophagus  <response>: Ans. is a ie More incidence of sq.cell ca There is increased incidence of adenocarcinoma in Barrets esophagus. o Barretts esophagus is a premalignant condition with increased incidence of adenocarcinoma of esophagus. o Also remember Barretts esophgus is the single most impoant risk factor for adenocarcinoma of esophagus . The adenocarcinoma develops at the squamo -Columnamr junction -85 or within 2cm of the junction. 