Internal auditory canal meningocele‐perilabyrinthine/translabyrinthine fistula: Case report and imaging

Truesdale, Carl M.; Peterson, Ryan B.; Hudgins, Patricia A.; Vivas, Esther

doi:10.1002/lary.25787

Cited by 7 publications

(2 citation statements)

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“…The most common presenting symptoms of the previously reported cases were meningitis, rhinorrhea and conductive hearing loss due to CSF accumulation in the middle ear. (4)(5)(6). The fallopian tunnel is usually shielded from subarachnoid pressures by a tight arachnoid band at the meatal foramen.…”

Section: Discussionmentioning

confidence: 99%

Sensorineural Hearing Loss Caused by Labyrinthine Erosion Due to a Cerebrospinal Fluid Diverticulum

Dielmann

Moncada

Monfared

2021

Otology &Amp; Neurotology

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Objective:To present a case of progressive sensorineural hearing loss (SNHL) caused by labyrinthine erosion secondary to expanding geniculate ganglion cerebrospinal fluid (CSF) diverticulum extending along the path of the facial nerve.Patient:Thirteen-year-old man with no past medical history or risk factors presented with unilateral progressive SNHL and no other otologic or neurologic symptoms.Interventions:Audiological data as well as imaging studies including a magnetic resonance imaging (MRI) of the brain and internal auditory canal and a temporal bone computed tomography (CT) are presented. Partial labyrinthectomy, CSF leak closure, and cochlear implantation were performed. A lumbar puncture was obtained 2 months postoperatively.Main Outcome Measure:Closure of the CSF leak.Results:Mastoidectomy revealed a wide area of CSF leak through the geniculate ganglion and fallopian canal with partial destruction of the superior and lateral semicircular canals by an expanding diverticulum.Conclusions:This is an unusual presentation of progressive SNHL due to partial labyrinthine erosion due to a meningocele of the geniculate ganglion along the fallopian canal. It is likely that the patient had a congenital open pathway through the labyrinthine segment of the facial nerve and CSF pulsations created the meningocele over a few years. This case argues for early closure of such CSF diverticula to prevent possible SNHL due to labyrinthine erosion.

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Section: Discussionmentioning

confidence: 99%

Sensorineural Hearing Loss Caused by Labyrinthine Erosion Due to a Cerebrospinal Fluid Diverticulum

Dielmann

Moncada

Monfared

2021

Otology &Amp; Neurotology

View full text Add to dashboard Cite

show abstract

“…Upon review of the literature, we found only one other case of an IAC meningocele; that particular patient presented with progressive left-sided hearing loss as his only symptom [5]. Due to this, surgery was not pursued and the case was presented as a reason not to pursue intervention.…”

Section: Discussionmentioning

confidence: 99%