, Vincent Y. W. Lin2 and Joseph M. Chen2
(1)
Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
(2)
Department of Otolaryngology Head & Neck Surgery, Sunnybrook Health Sciences Center, Toronto, Ontario, Canada
The next part of the dissection aims at identifying the facial nerve in its mastoid (vertical segment). The facial nerve is normally located inferior and slightly medial to the horizontal semicircular canal.
In a “typical” temporal bone the facial nerve runs medial to the horizontal semicircular canal. Always orient your level of dissection in relation to the lateral SCC: if you stay lateral to this important landmark, you are safe.Landmarks
Horizontal semicircular canal
Short process of incus
Tympanic segment of the facial nerve
Sinodural angle
Digastric ridge
Stay updated, free articles. Join our Telegram channel
Full access? Get Clinical Tree
