title: The "guitar pick" sign: a novel sign of retrobulbar hemorrhage.
abstract: Retrobulbar hemorrhage is a rare complication of blunt ocular trauma. Without prompt intervention, permanent reduction in visual acuity can develop in as little as 90 minutes. We report a novel bedside ultrasound finding of conical deformation of the posterior ocular globe: the "guitar pick" sign. In our elderly patient, the ocular globe shape normalized post-lateral canthotomy and inferior cantholysis. Identifying this sonographic finding may add to the clinical examination when deciding whether to perform decompression.
authors.affiliation: Department of Emergency Medicine, Denver Health Medical Center, Denver, Colorado, USA.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Theoret
authors.forename: Geoffrey E
authors.initials: GE
authors.lastname: Sanz
authors.forename: David
authors.initials: D
authors.lastname: Matero
authors.forename: Todd
authors.initials: T
authors.lastname: Guth
authors.forename: Catherine
authors.initials: C
authors.lastname: Erickson
authors.forename: Michael M
authors.initials: MM
authors.lastname: Liao
authors.forename: John L
authors.initials: JL
authors.lastname: Kendall
mesh_terms: D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D019315:Retrobulbar Hemorrhage / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography