Massive Epistaxis Related to Petrous Carotid Artery Pseudoaneurysm After Radiation Therapy: Emergency Treatment with Covered Stent in Two Cases
Kai Ming Auyeunga,
Wai Man Luib,
Lawrence C.K. Chowc and
Fu Luk Chana
a Department of Radiology, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
b Department of Neurosurgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
c Division of Otorhinolaryngology, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
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FIG 1. Case 1.
A, Conventional angiogram shows a small pseudoaneurysm in the distal portion of the left ICA. The pseudoaneurysm points inferomedially.
B, Follow-up angiogram after stent placement depicts patency of the artery, with no evidence of pseudoaneurym
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FIG 2. Case 2.
A, Conventional angiogram with left ICA injection demonstrates a large pseudoaneurysm in the petrous portion of the ICA.
B, Follow-up angiogram after stent placement shows total isolation of the pseudoaneurysm and patency of the ICA
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FIG 3. Case 2 (3-month follow-up).
A, Follow-up oblique sagittal reformation of a CT angiogram of the neck depicts patency of the portion of the left ICA with stent, with no evidence of pseudoaneurysm.
B, Follow-up axial CT scan shows that some portion of the ICA with stent is exposed to the nasopharynx.
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