You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is The adenocarcinoma of esophagus-develops in ? and explain in detail?
Ans. is 'a' i.e., Barrett's Esophagus Adenocarcinoma of esophagus almost always arises in Barrett's esophagus. Other option i.e. long standing achalasia, corrosive stricture and alcohol abuse are risk factors for squamous cell Ca of esophagus