This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
[{'content': 'Treatment of lymphoma of appendix? \nSelect and explain. \nA. Right hemicolectomy, B. Extended right hemicolectomy, C. Left hemicolectomy, D. Extended left hemicolectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Right hemicolectomyRef Internet SourcesAppendix lymphoma:* Most common presentation is like acute appendicitis* Most common in men >55 years age* CT scan will show aneurysmal dilatation of lumen* Most are NHL type lymphomas* Treatment involves right hemicolectomy including nodes followed by CHOP therapy', 'role': 'assistant'}]