case_images: PMC6572923_01
case_images: Imaging from patient 1. (A) Coronal and (B) axial computed tomography
  scans demonstrating bony erosion of the right sphenoid sinus (arrow).
  (C) Axial T1 postcontrast magnetic resonance imaging demonstrating
  classic "onion peel" layering of right internal carotid pseudoaneurysm
  (arrow).
case_images: 10.1177_2473974X18823002-fig1.jpg
case_images: PMC6572923_01_10.1177_2473974X18823002-fig1.jpg
case_images: fig1-2473974X18823002
case_images: Review of computed tomography and magnetic resonance imaging showed that instead of being a true mass within the sphenoid sinus, a suspected pseudoaneurysm of the internal carotid artery was present ( Figure 1 ).
case_images: PMC6572923_02
case_images: Angiogram of the left external carotid system demonstrating
  pseudoaneurysm (arrow) of the descending branch of the internal
  maxillary artery (A) before and (B) after embolization.
case_images: 10.1177_2473974X18823002-fig2.jpg
case_images: PMC6572923_02_10.1177_2473974X18823002-fig2.jpg
case_images: fig2-2473974X18823002
case_images: Embolization was performed with n-butyl cyanoacrylate glue with complete occlusion of the pseudoaneurysm ( Figure 2 ).