Following are features of Barrett&;s oesophagus
Intestinal Metaplasia
Always gastric type of epithelium
Squamous carcinoma more common
Present as patchy or ring involvement
Histologic changes of the distal oesophagal mucosa from its normal squamous epithelium to a columnar configuration (intestinal metaplasia). Barrett oesophagus in endoscopy appears as velvety-red "tongues" of mucosa that extend cephalad from the GEJ. These patients carry a higher risk to Adenocarcinoma oesophagus compared to normal population. Reference: Sabiston 20th edition page: 1074
G.I.T