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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Most reliable sign of injury to intrathoracic aoa is
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The correct answer is  Answer- C. Obliteration of aoic knob contourThe most reliable of these signs for the blunt aoic iniury is loss ofthe aoic knob contour.