True about Barret's esophagus:

Ans. is 'a', 'b', 'c' i.e. Long esophageal segment involved, Metaplasia, Peptic ulcerBarrett's 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