Intralabyrinthine schwannoma

Case contributed by Uchenna Ginikanne Mgbor
Diagnosis almost certain


Acute unilateral hearing loss. No dizziness on presentation.

Patient Data

Age: 35 years
Gender: Female

The axial 3D CISS sequence reveals a hypointense filling defect within the basal turn of the cochlea, replacing the normal hyperintense CSF signal intensity, represents the intracochlear schwannoma. 

The axial enhanced T1-weighted sequence at the level of the cochlea reveals a homogeneously enhancing mass in the basal turn of the cochlea (arrow) representing the intracochlear schwannoma.

Case Discussion

Histology obtained during surgery after the tumor grew, confirmed an intracochlear schwannoma.

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