Document Detail

Distal mycotic aneurysm of the AICA mimicking intracanalicular acoustic neuroma.
MedLine Citation:
PMID:  14672274     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Among cases of cerebellopontine angle lesions, vascular lesions involving the internal auditory canal are extremely rare. We report a distal fusiform mycotic pseudoaneurysm of the anterior inferior cerebellar artery (AICA) that simulated an acoustic neuroma on presentation. METHODS: A 60-year-old woman was investigated for recent onset of acute dizziness. Laboratory and radiographic investigations are presented, as well as the surgical management of the patient and pathological examination of the aneurysm. CONCLUSIONS: An exceptionally rare case of distal mycotic intracanalicular pseudoaneurysm of the AICA with intraluminal thrombus and fusiform anatomy is described. In our review of the literature (1966-present), only five other intracanalicular AICA-aneurysms were encountered, none of which were infectious in etiology. The possible pathophysiologic mechanisms of distal AICA-aneurysms are discussed along with the currently available literature.
Salvatore DiMaio; Gérard Mohr; Jean-Jacques Dufour; Steffan Albrecht
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Publication Detail:
Type:  Case Reports; Journal Article; Review    
Journal Detail:
Title:  The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques     Volume:  30     ISSN:  0317-1671     ISO Abbreviation:  Can J Neurol Sci     Publication Date:  2003 Nov 
Date Detail:
Created Date:  2003-12-15     Completed Date:  2004-01-28     Revised Date:  2005-11-16    
Medline Journal Info:
Nlm Unique ID:  0415227     Medline TA:  Can J Neurol Sci     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  388-92     Citation Subset:  IM    
Division of Neurosurgery, Sir Mortimer B. Davis--Jewish General Hospital, McGill University, Montreal, QC, Canada.
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MeSH Terms
Cerebellum / blood supply*
Diagnosis, Differential
Ear Canal / pathology
Intracranial Aneurysm / diagnosis*,  physiopathology
Middle Aged
Neuroma, Acoustic / blood supply,  diagnosis*,  physiopathology

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