<prompt> Adenocarcinoma of esophagus is commonly found inAchlasia acardiaBarrets oesophagusPlummer vinson syndromeChronic smoking  <response>: Answer is B Barrets esophagus Adenocarcinoma is seen in Barrets esophagus Barrets esophagus is a metaplastic change in the lining mucosa of oesophagus in response to chronic gastroesophagus reflex. In Barrets esophagus the junction between oesophageal mucosa squammous and gastric mucosa columnar moves proximally such that the lower pa of esophagus now becomes lined with different types of gastric mucosa. This pa of oesophagus has an increased risk for adenocarcinoma i.e. Adenocarcinoma is seen in Barrets esophagus. 