title: Aneurysmal bone cyst of the temporal bone presenting as hearing loss in a child.
abstract: We present an unusual case of a temporal bone and skull base tumor in a ten-year-old child. The patient presented with unilateral hearing loss and headaches. Radiologic, surgical, and histologic findings were consistent with an aneurysmal bone cyst. This is the first report on this rare entity to document its appearance in the temporal bone and skull base using magnetic resonance imaging. Treatment consisted of surgical removal, cranioplasty, and reconstruction of the external auditory canal.
authors.affiliation: Division of Neurosurgery, University of Iowa Hospitals and Clinics, Iowa City, USA.
authors.forename: P D
authors.initials: PD
authors.lastname: Sawin
authors.forename: M G
authors.initials: MG
authors.lastname: Muhonen
authors.forename: Y
authors.initials: Y
authors.lastname: Sato
authors.forename: R J
authors.initials: RJ
authors.lastname: Smith
mesh_terms: D000783:Aneurysm / Q000503:physiopathology* / Q000601:surgery; D001845:Bone Cysts / Q000175:diagnosis* / Q000503:physiopathology* / Q000601:surgery; D002648:Child; D003937:Diagnosis, Differential; D004727:Endothelium / Q000648:ultrastructure; D005260:Female; D015726:Giant Cells / Q000648:ultrastructure; D006314:Hearing Loss, Conductive / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D013701:Temporal Bone / Q000503:physiopathology* / Q000601:surgery