Otosclerosis - fenestral

Case contributed by A.Prof Frank Gaillard
Modality: CT

A small region of lucency (demineralization) just anterior to the oval window is characteristic of fenestral otosclerosis. 

Modality: Annotated image

Fenestral otosclerosis (arrow) as denoted by a small region of lucency (demineralization) just anterior to the oval window, involving a small cleft known as the fissula ante fenestram.

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Case Information

rID: 5568
Case created: 6th Feb 2009
Last edited: 21st Sep 2015
System: Head & Neck
Inclusion in quiz mode: Included

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