Thrombosed Large Distal Posterior Inferior Cerebellar Artery Aneurysm Mimicking an Infratentorial Ependymoma
Joint Authors
Ko, Natalie Man Wai
Woo, Peter Yat Ming
Chan, Kwong Yau
Source
Case Reports in Neurological Medicine
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-11
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Abstract EN
Large or giant intracranial aneurysms can simulate brain tumors clinically and radiologically by virtue of their progressive mass effect.
Unlike aneurysms from alternative locations, those arising from the distal posterior inferior cerebellar artery (PICA) are uncommon.
We report a patient who experienced progressive hemiparesis with magnetic resonance imaging findings suggestive of an infratentorial ependymoma.
Intraoperatively, a thrombosed large aneurysm of the distal PICA was unexpectedly encountered.
The aneurysm was clipped and the patient did not develop any permanent neurological deficit.
This case illustrates the radiological nuances of large aneurysms and infratentorial ependymomas.
Three-dimensional contrast-enhanced magnetic resonance angiography can be falsely negative and the importance of the “target” sign is emphasized.
One should be cognizant of this possible diagnosis for patients with midline fourth ventricular lesions in order to reduce surgical risk.
American Psychological Association (APA)
Woo, Peter Yat Ming& Ko, Natalie Man Wai& Chan, Kwong Yau. 2014. Thrombosed Large Distal Posterior Inferior Cerebellar Artery Aneurysm Mimicking an Infratentorial Ependymoma. Case Reports in Neurological Medicine،Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-472079
Modern Language Association (MLA)
Woo, Peter Yat Ming…[et al.]. Thrombosed Large Distal Posterior Inferior Cerebellar Artery Aneurysm Mimicking an Infratentorial Ependymoma. Case Reports in Neurological Medicine No. 2014 (2014), pp.1-4.
https://search.emarefa.net/detail/BIM-472079
American Medical Association (AMA)
Woo, Peter Yat Ming& Ko, Natalie Man Wai& Chan, Kwong Yau. Thrombosed Large Distal Posterior Inferior Cerebellar Artery Aneurysm Mimicking an Infratentorial Ependymoma. Case Reports in Neurological Medicine. 2014. Vol. 2014, no. 2014, pp.1-4.
https://search.emarefa.net/detail/BIM-472079
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472079