Internal carotid artery aplasia/hypoplasia

Case contributed by Dr Nikola Todorovic


Occasional headaches. Her neurologist requested MRI brain to exclude morphological aetiology for the patient's problem.

Patient Data

Age: 70
Gender: Female

There is a complete absence of the left internal carotid artery. There are no significant cerebrovascular sequelae in the brain parenchyma, with only a few punctiform hyperintensities on T2W/FLAIR which are consistent with previous minor ischemic lesions.

Collateral circulation is provided via the anterior and posterior comunnicating arteries.

Otherwise, the MRI brain is unremarkable.

Case Discussion

Taking into consideration the patient's age and lack of major ischemic change, the most probable diagnosis in the case is congenital aplasia/hypoplasia of the left internal carotid artery.

This patients risk for a cerebral aneurysm is increased, but no aneurysm has been found in this examination.

PlayAdd to Share

Case information

rID: 55480
Published: 9th Sep 2017
Last edited: 11th Sep 2017
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.