<prompt> True about Barretts esophagus is?Squamous metaplasiaColumnar metaplasiairreversibleCancerous  <response>: Barrett Esophagus Barrett esophagus is a complication of chronic GERD that is characterized by intestinal metaplasia within the esophageal squamous mucosa. TEXT BOOK OF ROBBINS BASIC PATHOLOGY NINTH EDITION PAGE.561 IMAGE REF: 