This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'The treatment of choice for fibrous dysplasis of mandible in a 7 year old girl is \nSelect and explain. \nA. Wait and watch, B. Symmetrical resection of mandible, C. Hemi mandibulectomy, D. Local irradiation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Fibrous dysphasia stas in early childhood. Lesion is usually small and asymptomatic and often diagnosed accidentally during radiological examination. Lesions are small and-asymptomatic and progress slowly. Majority of fractures heal by conservative management Sarcomatous changes occur by irradiation.', 'role': 'assistant'}]