title: Intraorbital wood foreign body mimicking air at CT.
abstract: Computed tomography (CT) revealed a 2-cm linear area of extremely low attenuation in the left orbit of a boy who had been poked in the eye with a tree branch. The appearance and attenuation of the area suggested air, so a diagnosis of orbital emphysema was initially considered. Further research indicated that wood mimics the CT attenuation and appearance of air. A wood splinter was surgically removed from the orbit.
authors.affiliation: Department of Radiology, Gundersen Clinic Ltd, Gundersen-Lutheran Medical, La Crosse, WI 54601.
authors.forename: C F
authors.initials: CF
authors.lastname: Roberts
authors.forename: P J
authors.initials: PJ
authors.lastname: Leehey
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D004646:Emphysema / Q000000981:diagnostic imaging*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009915:Orbit / Q000293:injuries; D009916:Orbital Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014934:Wood