[Dehiscence of the anterior semicircular canal and otosclerosis: a case report].
The dehiscence of the anterior semicircular canal is a new clinical entity, it is necessary to consider this when a gusher occurs during stapedial surgery.


METHODS
We report a rare case of dehiscence of the anterior canal associated with otosclerosis. This was revealed by a gusher during the initial stapedectomy. At 3 months, an obliteration of the dehiscence was necessary by middle cranial fossa approach (persistant vestibular symptoms), seven months later. Revision stapedial surgery resulted in complete closure of the air-bone-gap.


CONCLUSIONS
High resolution CT scans of the temporal bone are the key to diagnosis. It is necessary to appreciate this pathology with advances in canal and vestibular surgery.
Nguyen
D Q
DQ
Clinique de Turin, Paris, France. dqnguyen@freesurf.fr
Morel
N
N
Dumas
G
G
Boubagra
K
K
Schmerber
S
S
D042241:Early Diagnosis; D005260:Female; D006801:Humans; D008875:Middle Aged; D010040:Otosclerosis / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications; D013201:Stapes Surgery / Q000379:methods*; D013529:Surgical Wound Dehiscence / Q000209:etiology*; D013701:Temporal Bone / Q000000981:diagnostic imaging; D013997:Time Factors; D014057:Tomography, X-Ray Computed