<prompt> TRUEFALSE about Barretts esophagus isare: 1. Metaplasia 2. Peptic ulcer 3. Paraesophageal hernia 4. Leads to adenocarcinoma 5. Long esophageal segment involved1,2,3 true 4,5 false1,2,4,5 true 3 false1,2,4 True 3,5 false1,2 true 3,4,5 false  <response>: Barretts esophagus refers to the metaplastic change of distal esophageal mucosa from normal squamous epithelium to columnar epithelium, in response to chronic gastroesophageal reflux. The most common type of metaplasia is intestinal type of metaplasia and presence of intestinal goblet cell is the hallmark of intestinal metaplasia. Stricture formation and peptic ulceration of columnar lined epithelium of esophagus is common complication of barretts esophagus. Barretts esophagus can be classified into long segment involvement of 3 cm of esophagus and sho segment disease involvement of 3 cm of esophagus. Long segment disease carries more risk for adenocarcinoma. Barretts esophagus is associated with sliding hernia not with paraesophageal hernia. Ref: Robbins 8e, Page 770; Bailey Love 25e, Page 1022. 