title: The swirl sign.
authors.affiliation: Department of Radiology, Vancouver Hospital and Health Science Centre, 855 W 12th Ave, Vancouver, British Columbia, Canada V5Z 1M9. nizar97@hotmail.com
authors.forename: N A
authors.initials: NA
authors.lastname: Al-Nakshabandi
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging*; D006407:Hematoma, Epidural, Cranial / Q000000981:diagnostic imaging*; D006801:Humans; D014057:Tomography, X-Ray Computed