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': 'A 4-year-old female brought to the casualty department with multiple fractured ribs, and inconspicuous history from parents. On examination show multiple bruises and healed fractures. The probable diagnosis is - \nSelect and explain. \nA. Polytrauma for evaluation, B. Flail chest, C. Munchausen syndrome, D. Battered baby syndrome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: child abuse have certain characteristic features :\n\nInflicted fractures of the shaft are more likely to\xa0be spiral\xa0rather than transverse.\nA classic finding is a chip fracture in which a corner of the metaphysis of a long bone is torn off with damage to epiphysis and periosteum.\n\n\n\nBruises, Petechiae and Ecchymosis... all provide further clues to the diagnosis of child abuse.\nIn the given patient presence of spiral fracture femur, along with varying degrees of ecchymosis is highly suggestive of Battered baby syndrome.', 'role': 'assistant'}]