<prompt> True about Barrets esophagus:Long esophageal segment involvedMetaplasiaPeptic ulcerAll  <response>: Ans. is a, b, c i.e. Long esophageal segment involved, Metaplasia, Peptic ulcerBarretts esophagus can be classified into long segment disease involvement of more than 3 cm of esophagus and sho segment disease 3 cm involvement.Long segment disease carries more risk for adenocarcinoma 