Carotid Cavernous Sinus Fistula with Contralateral Feed Not Diagnosed by Virtual Assessment or by Non-Invasive Vascular Imaging

Case Reports in Ophthalmology

Thomas R. Marotta¹  Felix Tyndel²  Joyce Tang²  Edsel Ing³ 

[1] Interventional Radiology, University of Toronto, Toronto, ON, Canada;Neurology, University of Toronto, Toronto, ON, Canada;Ophthalmology, University of Toronto, Toronto, ON, Canada;

关键词: contralateral feed;    carotid cavernous fistula;    dural fistula;    digital subtraction angiography;   

DOI  :  10.1159/000518806

来源: DOAJ

【 摘 要 】

A 67-year-old woman had delayed initial diagnosis of her right low flow carotid cavernous fistula (CCF) during the coronavirus disease (COVID-19) pandemic due to difficulty detecting ocular signs via online virtual examinations. Her right eye conjunctival erythema and proptosis with medial rectus enlargement on computed tomography scan was initially misdiagnosed as euthyroid thyroid-associated orbitopathy without lid retraction. She developed vision loss, and increasing episcleral venous congestion and CCF was suspected. Computed tomographic angiography did not show an obvious fistula. Digital subtraction angiography revealed the right-sided low flow CCF, which was fed from vessels from the contralateral side.

【 授权许可】

Unknown