Persistent petrosquamosal sinus: underlying cause of otitic hydrocephalus with lateral sinus thrombosis.
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.
Department of Otorhinolaryngology, Nishi-Kobe Medical Center, 5-7-1, Kouji-dai, Nishi-ku, Kobe City, Hyogo 651-2273, Japan. Electronic address: inokuchi@med.kobe-u.ac.jp.
Go
G
Inokuchi
Nao
N
Tsutsumi
Hirokazu
H
Komatsu
Takeshi
T
Fujita
Naoki
N
Sawada
Kazuo
K
Kumoi
D000208:Acute Disease; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D002675:Child, Preschool; D003287:Contrast Media; D003392:Cranial Sinuses / Q000002:abnormalities*; D003952:Diagnostic Imaging / Q000379:methods; D018450:Disease Progression; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D020227:Lateral Sinus Thrombosis / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008417:Mastoiditis / Q000175:diagnosis* / Q000601:surgery; D008876:Middle Ear Ventilation / Q000379:methods*; D010033:Otitis Media / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D010690:Phlebography / Q000379:methods; D035583:Rare Diseases; D012008:Recurrence; D018570:Risk Assessment; D013701:Temporal Bone / Q000002:abnormalities / Q000098:blood supply*; D014057:Tomography, X-Ray Computed / Q000379:methods; D016896:Treatment Outcome
D000900:Anti-Bacterial Agents; D003287:Contrast Media
Acute otitis media; Lateral sinus thrombosis; Otitic hydrocephalus; Petrosquamosal sinus; Petrosquamous sinus