title: Aberrant jugular bulb vein obstructing approach to intracanalicular vestibular schwannoma.
abstract: In cases of jugular bulb anomalies, such as a high jugular bulb, troublesome bleeding may occur during surgery. We report an unusual case with a vestibular schwannoma, in which we recognized an additional branch arising from the jugular bulb. Three-dimensional computed tomography (3-D CT) revealed this anomaly beforehand, enabling us to avert excessive bleeding upon resection of the tumour. The abnormal vein was thought to be a remnant of the petrosquamosal sinus in the embryonic stage.
authors.affiliation: Department of Otolaryngology, Faculty of Medicine, Tokyo Medical and Dental University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Tsutsumi
authors.forename: A
authors.initials: A
authors.lastname: Tsunoda
authors.forename: K
authors.initials: K
authors.lastname: Shimamoto
authors.forename: A
authors.initials: A
authors.lastname: Komatsuzaki
mesh_terms: D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D013701:Temporal Bone / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed