Swirl sign

Case contributed by Dr Ayush Goel


Road traffic accident

Patient Data

Age: 45
Gender: Male

Left subdural hematoma with hypodensities interspersed with 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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Case information

rID: 36930
Published: 18th May 2015
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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