TSFN

(redirected from Tympanic Segment of the Facial Nerve)
AcronymDefinition
TSFNTweed Sutherland First National (Bendigo, Australia)
TSFNTympanic Segment of the Facial Nerve (otolaryngology)
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References in periodicals archive ?
The MEO was contiguous to the tympanic segment of the facial nerve and induced conductive hearing loss due to the involvement of the incus and stapes.
If it is contiguous to the tympanic segment of the facial nerve with no preoperative facial weakness, it may be partially removed to prevent any definitive postoperative facial nerve injury [9].
They could identify several key structures such as incudomalleolar articulation, tympanic segment of the facial nerve, lateral semicircular canal and aditus ad antrum, all without provoking lesions in the middle ear structures.
We present a case of facial nerve palsy concurrent with a benign cystic lesion of the temporal bone, adjacent to the tympanic segment of the facial nerve. The patient's symptoms subsided after facial nerve decompression via a transmastoid approach.
High-resolution computed tomography (CT) of the temporal bones showed significant ossicular displacement; no evidence of a fracture or penetrating bony spicule involving the tympanic segment of the facial nerve was found (figure).
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.
A 2 x 2-mm mucosa-like mass was encountered in the region of the tympanic segment of the facial nerve superior to the stapes (figure).
They include the absence of the foramen spinosum on the affected side and the enlargement of the proximal tympanic segment of the facial nerve canal adjacent to the cochleariform process.
The next step was to reach the geniculate ganglion by following the tympanic segment of the facial nerve. After the geniculate ganglion was exposed, the labyrinthine segment was easily reached.
To avoid the difficulties encountered with other techniques, we use the cochleariform process in the middle ear as the primary landmark for identifying the tympanic segment of the facial nerve. We then follow this segment to reach the geniculate ganglion and the labyrinthine segment.
The tympanic segment of the facial nerve could be seen just above the oval window.