Presentation
Bilateral gradual onset hearing loss
Patient Data
Axial CT of the temporal bone showing bilateral, more pronounced on the right, focal area of lucency (demineralization) just anterior to the oval window.
The foot plate of stapes (yellow arrow) articulating with the oval window and just anterior to it the focal area of lucency (red arrow) denoting fenestral otosclerosis.
Case Discussion
This case demonstrates typical radiological appearance and clinical presentation of fenestral otosclerosis which is considered to be somewhat of a misnomer because it usually presents by lucent rather than sclerotic changes of the otic capsule and that's why the term otospongiosis is becoming more preferred for describing this condition.