title: Intraorbital subperiosteal hematoma due to paranasal mucocele--case report.
abstract: A 68-year-old female was admitted with a rare intraorbital subperiosteal hematoma manifesting as sudden orbital pain, progressive blepharoptosis, and diplopia. Computed tomography showed a biconvex high density mass in the superomedial part of the left orbit, which was recognized to be a subperiosteal hematoma intraoperatively. The eroded orbital roof between the frontal sinus and orbit was a result of mechanical compression by the mucocele. Infection extending into the orbit was important in causing the hemorrhage.
authors.affiliation: Department of Neurosurgery, Nara Prefectural Gojo Hospital, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Aoki
authors.forename: Y
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Niki
authors.forename: K
authors.initials: K
authors.lastname: Kamada
authors.forename: T
authors.initials: T
authors.lastname: Fujita
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D015522:Frontal Sinusitis / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006406:Hematoma / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D009078:Mucocele / Q000150:complications* / Q000473:pathology / Q000601:surgery; D009915:Orbit / Q000473:pathology / Q000601:surgery; D009916:Orbital Diseases / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D010521:Periosteum / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed