Document Detail

Nontraumatic and noninfectious pseudoaneurysms on the circle of Willis: 2 case reports and review of the literature.
MedLine Citation:
PMID:  18261771     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Nontraumatic and noninfectious pseudoaneurysms with similar shape of true saccular aneurysm on the circle of Willis are rare. CASE DESCRIPTIONS: Two patients with such pseudoaneurysms are reported, one is a 37-year-old man, the other is a 50-year-old woman. They presented with sudden headache; CT scan showed subarachnoid hemorrhage in both. Thorough medical history had been reviewed; physical and laboratory examination had been made but demonstrated no evidence of craniocerebral injury and intracranial or systematic infection. On the cerebroangiogram, they represented the same imageologic changes of true saccular aneurysm, but subsequent operation and pathologic examination revealed that they were pseudoaneurysms consisting of blood clot enclosed with a layer of connective tissue; degenerative changes may have contributed to their formation. CONCLUSION: Careful attention should be given in classifying these saccular pseudoaneurysm from true saccular aneurysms because of their friable nature, tendency of rupture, and different pathologic findings.
Hao Ding; Chao You; Hao Yin
Publication Detail:
Type:  Case Reports; Journal Article; Review     Date:  2008-02-08
Journal Detail:
Title:  Surgical neurology     Volume:  69     ISSN:  0090-3019     ISO Abbreviation:  Surg Neurol     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-28     Completed Date:  2008-05-06     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0367070     Medline TA:  Surg Neurol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  414-7; discussion 417     Citation Subset:  IM    
Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China.
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MeSH Terms
Aneurysm, False / diagnosis*,  etiology,  surgery*
Circle of Willis*
Intracranial Aneurysm / diagnosis*,  etiology,  surgery*
Middle Aged

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