Caroticocavernous and dural AV fistula
Citation, DOI, disclosures and case data
At the time the case was submitted for publication Seamus O'Flaherty had no recorded disclosures.View Seamus O'Flaherty's current disclosures
Loading Stack -
0 images remaining
Bilateral subcortical and periventricular white matter T2 hyperintensity without evidence of restricted diffusion, in keeping with chronic small vessel ischemic change. Further chronic ischemic change within the brainstem. Chronic left frontal lobe cortical infarct.
High signal within the left cavernous sinus on MRA, similar to the adjacent internal carotid artery. High signal within the dilated left superior ophthalmic vein representing arterialized retrograde flow. This is in keeping with a left caroticocavernous fistula. Flow related artifact within the cavernous sinus with no evidence of cavernous sinus thrombosis.
Additionally, there are enlarged external carotid branches (occipital and posterior auricular) on the left feeding a left transverse sinus dural arteriovenous fistula.
Pulsatile or buzzing tinnitus is a typical symptom experienced by patients due to the turbulent flow within the fistula.
Direct caroticocavernous fistulas are often secondary to trauma, which may be recent or old. This patient had a history of falls.
9 public playlists include this case
- MR29 by tuanleminh ◉
- MR30 by tuanleminh ◉
- Brain by Maxim Simonov
- Bleeding by Piotr Bąk
- RT Neuro by Kevin Sheng
- neuro per review 6 by Francesco Buemi ◉
- Mri head by N Seth
- encefalo by Paolo Colamussi
- neuro per review by Francesco Buemi ◉