Persistent petrosquamosal sinus: Underlying cause of otitic hydrocephalus with lateral sinus thrombosis

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• 作者：Go Inokuchi ; Nao Tsutsumi ; Hirokazu Komatsu ; Takeshi Fujita ; Naoki Sawada ; Kazuo Kumoi
• 关键词：Petrosquamosal sinus ; Petrosquamous sinus ; Lateral sinus thrombosis ; Acute otitis media ; Otitic hydrocephalus
• 刊名：International Journal of Pediatric Otorhinolaryngology
• 出版年：2013
• 出版时间：November, 2013
• 年：2013
• 卷：77
• 期：11
• 页码：1908-1911
• 全文大小：1563 K

文摘

Lateral sinus thrombosis (LST) occurs when a middle ear infection disseminates directly via bone erosion or disseminates indirectly through the venous networks. The petrosquamosal sinus (PSS) is the residual accessory dural sinus connecting intracranial to extracranial drainage. This report describes a case of a patient with persistent PSS running through the mastoid in context of otitic hydrocephalus with LST. To identify PSS, enhanced CT and reconstructed image from CT venography were more useful than MRI. The possibility of persistent PSS running through the mastoid should be considered if LST without marked inflammation and bone erosion is noted.