Swirl sign

Case contributed by Dr Ayush Goel

Presentation

Road traffic accident

Patient Data

Age: 45
Gender: Male
CT

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 haematoma. It represents unclotted fresh blood which is hypoattenuating than clotted blood which surrounds it.

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Case information

rID: 36930
Case created: 18th May 2015
Last edited: 28th Aug 2017
Inclusion in quiz mode: Included

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