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': 'Base of the skul fracture presents with invovlement of the petrous temporal bone, which of the following impoant sign is seen - \nSelect and explain. \nA. Subconjuctival hematoma, B. CSF rhinorrhoea, C. Raccoon eyes, D. Battle sign', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Battle sign Battle's sign (or mastoid echymosis) is bruising or ecchymiosis over the mastoids (i.e. behind the ear). Seen in pterous temporal bone base-of-skull fracture. Raccoon's sign or periorbital ecchymosis is seen in subgaleal haemorrhage (d/t frontal trauma)", 'role': 'assistant'}]