Related Experiment Video
Updated: Jul 7, 2026

Endoscopic Cholesteatoma Surgery
Published on: January 19, 2022
[Exostosis of the external auditory canal: clinical and therapeutic aspects]
D Portmann1, E Rodrigues, D Herman
1C.H.U. Pellegrin Tripode, Clinique ORL, Bordeaux, France.
Abstract:
Based on the study of 25 cases, the authors recall the frequency and pathogeny of these lesions, specifying the surgical technique and presenting their results. The risks of this surgery lie in the ever possible impairment of the facial nerve and labyrinthization on treble frequencies (2 cases). The incidents are tympanic perforation (1 case) and the opening of the temporomandibular joint. It is not always possible to preserve the skin of the external auditory canal. It can be reconstructed by a free (3 cases) or pedicle (3 cases) graft of more simply in case of small loss of substance by a temporal fascia graft.
Related Concept Videos
The Cochlea
The Auditory Ossicles
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...
Anatomy of the Ear
Auditory Pathway
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...

