Facial nerve injury commonly involves geniculate ganglion
region in longitudinal fractures and labyrinthine portion in transverse fractures.
meningiomas: CT and MR appearances.
Since then autopsy studies have shown HSV in the geniculate ganglion
of patients with Bell's palsy.
If the dehiscence is before the cog, it is classified as geniculate ganglion
On herpetic inflammation of the geniculate ganglion
It is surrounded by various clinically significant structures, including the cochlea, middle ear, eustachian tube, gasserian ganglion, geniculate ganglion
, greater superficial petrosal nerve, and jugular fossa.
Additionally, the geniculate ganglion
and tympanic segment of the facial nerve also had greater contrast uptake than the opposite side, indicating tumor in these sections.
Two ganglia of the facial nerve--the geniculate ganglion
and the meatal ganglion--are well established.
Although magnetic resonance imaging (MRI) with gadolinium contrast usually shows enhancement of the cochleovestibular complex, the facial nerve, and the geniculate ganglion
in Ramsay Hunt syndrome type I (RHS), also known as herpes zoster oticus, the authors did not refer to other, less common MRI findings.
Dissection around the geniculate ganglion
can compromise the vascularity of the facial nerve or damage the labyrinthine facial nerve; in either case, poor postoperative facial nerve function may ensue?
6) A finding of varicella-zoster--seronegative ganglia indicates that varicelia has become latent in the human geniculate ganglion
following a primary infection and that reactivation of the latent virus from the geniculate ganglion
precipitates Ramsey Hunt syndrome type I.
Computed tomography demonstrated a soft-tissue mass in the middle ear space and a bony expansion of the fallopian canal from the geniculate ganglion
to the stylomastoid foramen.
Magnetic resonance imaging with gadolinium contrast showed an enhancement of the facial nerve extending from the area of the geniculate ganglion
to its intraparotid segment.
Between June 1, 1984, and June 30, 1993, we surgically treated 220 cases of traumatic facial paralysis with good cochlear reserve by decompressing the tympanic and mastoid segments via a transmastoid approach followed by decompression of the geniculate ganglion
and the distal half of the labyrinthine segment via a middle fossa approach.
5) In the middle ear or mastoid portion of the temporal bone, an intracranial meningioma can extend along the path of least resistance through a tegmen tympani to dehiscence, the sulci of the greater and lesser superficial petrosal nerves, the sigmoid sinus plate, the geniculate ganglion
area, the internal auditory canal, the lateral semicircular canal, and the perilabyrinthine cell tracts or jugular foramen.