This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oesophagus, Subject name: Surgery
[{'content': 'True about Esophageal Cancer: \nSelect and explain. \nA. More lethal than colorectal cancer, B. Increasing trends towards squamous cell cancer, C. Small lesions have better prognosis, D. Asymptomatic Benign lesions excised immediately', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) More lethal than colorectal cancerRef Bailey and Love 27th edition Page 1085* Colorectal cancers are 10 times common than Esophageal cancer, but 1 /4th of the patients with esophageal cancer die* Lymphnode status is the important prognostic factor and not the size of the tumor Even small tumor can cause poor prognosis* Esophageal cancer is the 6th most common cancer in world, only 5-10% will survive for 5 years after diagnosis* There is increasing adenocancer trend now in the world in esophagus.* Asymptomatic benign lesions can be followed-up.', 'role': 'assistant'}]