case_images: PMC6239025_01
case_images: Dehiscence of the right internal carotid artery at the level of the
  eustachian tube on noncontrast computed tomography (CT) of the right
  temporal bone. (A) Axial CT images of the right temporal bone demonstrating
  dehiscence of the internal carotid artery (ICA) (arrows) at the level of the
  eustachian tube (ET). (B) Coronal CT images of the right temporal bone
  demonstrating dehiscence of the ICA (arrows) at the level of the ET.
case_images: 10.1177_2473974X17753605-fig1.jpg
case_images: PMC6239025_01_10.1177_2473974X17753605-fig1.jpg
case_images: fig1-2473974X17753605
case_images: This examination revealed a large dehiscence of the petrous segment of the ICA anteriorly to the cochlea, just at the level of the medial wall of the eustachian tube (ET) on the right side ( Figure 1 ).