Anterior inferior cerebellar artery vascular loop-type II

Case contributed by Dr Heba Mohamed

Presentation

Right trigeminal neuralgia.

Patient Data

Age: 35-40 years
Gender: Male

An incidental finding of a vascular loop of the right AICA just approaching the entrance of the right internal auditory canal. Both trigeminal nerves are normal.

Case Discussion

Vascular loop of the AICA is classified into:

  • type 1: vascular loop within the CPA level
  • type 2: vascular loop proximal to the IAC extends to less than 50% of the canal
  • type 3: vascular loop distal to the IAC extends to more than 50% of the canal
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Case information

rID: 65779
Published: 24th Jan 2019
Last edited: 27th Jan 2019
Inclusion in quiz mode: Included
Institution: Zagazig University Hospital

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