Anterior inferior cerebellar artery vascular loop - type II

Case contributed by Dr Fateme Hosseinabadi


Right sudden sensorineural hearing loss and tinnitus

Patient Data

Age: 35 years
Gender: Female

Axial 3D-FIESTA MRI demonstrating vascular loop of anterior inferior cerebellar artery, proximal to the right IAC that extends to less than 50% of the canal.

Case Discussion

The AICA is a branch of basilar artery that courses through the CPA posterolaterally to supply the anterior to middle parts of the cerebellum and inferolateral pons. Labyrinthine artery is a branch of the AICA.  

Chavda classification of AICA loop, classified AICA loop occupying no more than 50% of IAC as type II.

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Case information

rID: 70991
Published: 13th Sep 2019
Last edited: 14th Sep 2019
Inclusion in quiz mode: Excluded
Institution: Zahedan medical university

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