Brain Abscess Formation: A Delayed Complication of Carotid Blowout Syndrome Treated by Self-Expandable Stent-Graft
F.-C. Changa,c,
J.-F. Lirnga,c,
S.-K. Taib,d,
C.-B. Luoa,c,
M.M.H. Tenga,c and
C.-Y. Changa,c
a Department of Radiology, Taipei Veterans General Hospital
b Department of Otolaryngology, Taipei Veterans General Hospital
c National Yang Ming University School of Medicine, National Yang-Ming University, Taipei, Taiwan
d Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
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Fig 1. Axial CT of the neck with contrast medium shows slightly irregular axial contour of the left carotid bifurcation (arrow). An area of necrosis with gas bubbles is seen in the left pyriform sinus (arrowhead), adjacent to the left carotid artery.
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Fig 2. Selective angiograms of the left carotid artery, with a lateral view. A, A pseudoaneurysm in the right distal common carotid artery is noted (arrow). B, A self-expandable Wallgraft stent is deployed from the right internal carotid artery to right common carotid artery. Three fiber coils in the main trunk and proximal branches of the left external carotid artery are also found (arrowheads).
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Fig 3. Axial CT scans of the brain and neck performed with contrast medium. A, Multiple brain abscesses are noted in the left centrum semiovale and the left high frontal region (arrowheads), in the junctional zone of the left anterior and middle cerebral arteries. B, Thrombosis with gas collection within the stent-graft is found in the left carotid artery (arrow). The stent has been extruded and exposed to the hypopharyngeal wall (arrowheads). C, Thrombosis of the left common carotid artery proximal to the stent is found (arrow).
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