This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Plastic Surgery and Skin Lesions, Subject name: Surgery
[{'content': 'The term universal tumor refers to: \nSelect and explain. \nA. Adenoma, B. Papilloma, C. Fibroma, D. Lipoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Lipomas are most common SUBCUTANEOUS LIPOMAS Also known as UNIVERSAL TUMOUR MC site: Trunk BRACKET CALCIFICATION is seen in lipoma of corpus callosum SURGICAL EXCISION is required for removal', 'role': 'assistant'}]