In Barrett&;s oesophagus, lining is: (A) Squamous cell epithelium, (B) Transitional cell epithelium, (C) Secreting columnar cell epithelium, (D) None of the above
Answer is C. .BARRETT&;S OESOPHAGUS is the metaplastic changes in the mucosa of the oesophagus as the result of GORD. * Squamous epithelium of lower end of the oesophagus is replaced by diseased columnar epithelium (columnar metaplasia). * There is a macroscopical visible length of columnar mucosa with microscopic features of intestinal metaplasia. * It affects lower oesophagus commonly often middle oesophagus also. Ref: SRB&;s manual of surgery,3 rd ed, pg no 744