Aberrant internal carotid artery

Case contributed by Dr Mostafa El-Feky

Presentation

Left ear bruit.

Patient Data

Age: 40 years
Gender: Male

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

CT

Annotated images

Deficient bony plate along the tympanic portion of internal carotid artery at the middle tympanic cavity. The artery passes lateral to the cochlear promontory.

Case Discussion

Aberrant internal carotid artery is a normal variant and can be mistaken for a glomus jugulare tumor. Recognizing the findings of an aberrant internal carotid artery is important to avoid potentially severe surgical complications. 

It is important to note that from these selected images on a non-contrast basis, it is difficult to confirm the diagnosis and full-study CT stacks are needed, which were not available. Differential diagnosis includes glomus jugulotympanicum.

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Case information

rID: 22266
Published: 23rd Mar 2013
Last edited: 6th Sep 2020
Inclusion in quiz mode: Excluded

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