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: Orthopaedics
[{'content': "Not true about Chondroblastoma \nSelect and explain. \nA. Chicken wire appearance, B. CODMAN's tumor, C. Epiphyseal tumor, D. Treated by chemotherapy", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Treatment is surgical, extended currettage with bone grafting.', 'role': 'assistant'}]