Pseudoaneurysm of the petrous internal carotid artery after skull base infection and prevertebral abscess drainage.
A 37-year-old woman with a skull base infection sustained massive oropharyngeal bleeding after incisional nasopharyngeal biopsy and drainage of a prevertebral abscess. A pseudoaneurysm originating at the petrous portion of the internal carotid artery was initially misinterpreted on MR images as typical postoperative change within a resolving abscess cavity. Follow-up MR imaging and conventional angiography ultimately disclosed the pseudoaneurysm.
Tanaka
H
H
Department of Radiology, University of Rochester Medical Center, NY, USA.
Patel
U
U
Shrier
D A
DA
Coniglio
J U
JU
D000038:Abscess / Q000382:microbiology / Q000601:surgery*; D000328:Adult; D017541:Aneurysm, False / Q000175:diagnosis / Q000209:etiology*; D001847:Bone Diseases / Q000382:microbiology / Q000601:surgery; D002340:Carotid Artery Diseases / Q000175:diagnosis / Q000209:etiology*; D002343:Carotid Artery, Internal / Q000473:pathology; D002533:Cerebral Angiography; D004322:Drainage; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011183:Postoperative Complications; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification; D012886:Skull; D019291:Skull Base