What is the commonest site of esophageal carcinoma ?: (A) lower end of oesophagus, (B) upper end of oesophagus, (C) middle third of oesophagus, (D) thorasic pa of oesophagus
Answer is A. The lower end of the oesophagus is also prone to inflammation or ulceration by regurgitation of acid from the stomach. It is the commonest site of oesophageal carcinoma. Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 2 , pg.no.,273.