" /> hyperattenuating crescent sign - CISMeF





Preferred Label : hyperattenuating crescent sign;

Definition : Crescent-shape found along posterior wall of abdominal aorta on CT scan of higher attenuation than luminal blood. Indicates impending rupture of abdominal aortic aneurysm as blood penetrates thrombus or arterial wall.;

Source : Radiology 1999; 211:37-38;

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Crescent-shape found along posterior wall of abdominal aorta on CT scan of higher attenuation than luminal blood. Indicates impending rupture of abdominal aortic aneurysm as blood penetrates thrombus or arterial wall.

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29/07/2025


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