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: Radiology
[{'content': "Radiographically, the lesion shown in color plate could be: \nSelect and explain. \nA. Osteosarcoma, B. Fibrous dysplasia, C. Garre's osteomyelitis, D. Cherubism", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Formation of layers of new subperiosteal bone produces onion skin appearance which is seen in Garre\'s osteomyelitis, Ewing’s Sarcoma and Chondrosarcoma.\nIn fibrous dysplasia, "ground glass" or "peau d’orange" appearance is seen\xa0radiologically.', 'role': 'assistant'}]