Presentation
Road traffic accident
Patient Data
Age: 45 years
Gender: Male
From the case:
Subdural hematoma - swirl sign
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Info
Left subdural hematoma with hypodensities interspersed within the hyperdense collection (swirl sign).
Case Discussion
The swirl sign refers to the noncontrast CT appearance of acute extravasation of blood into a hematoma. It represents unclotted fresh blood which is hypoattenuating than clotted blood which surrounds it.
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