This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ohopaedics Q Bank, Subject name: Orthopaedics
[{'content': 'Maffucci syndrome: \nSelect and explain. \nA. Multiple enchondromatosis with hemangiomas, B. Multiple osteochondromatosis with hemangiomas, C. Multiple osteochondromas, D. Multiple Giant cell tumor', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Maffucci syndrome: 100% risk of malignant transformation Multiple enchondroma Hemangioma Phleboliths', 'role': 'assistant'}]