Intractable Posterior Epistaxis due to a Spontaneous Low-Flow Carotid-Cavernous Sinus Fistula: A Case Report and a Review of the Literature

<div>(a) DSA sagittal image. Contrast agent leaking into the right cavernous sinus. (b) The right sphenoid sinus after coil-embolization through right transfemoral transvenous access.</div>

Case Reports in Otolaryngology

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Figure 2: Intractable Posterior Epistaxis due to a Spontaneous Low-Flow Carotid-Cavernous Sinus Fistula: A Case Report and a Review of the Literature 

Figure 2 | Intractable Posterior Epistaxis due to a Spontaneous Low-Flow Carotid-Cavernous Sinus Fistula: A Case Report and a Review of the Literature 