Document Detail

Quadrigeminal non-aneurysmal subarachnoid hemorrhage--a true variant of perimesencephalic subarachnoid hemorrhage. Case report.
MedLine Citation:
PMID:  12691799     Owner:  NLM     Status:  MEDLINE    
Spontaneous non-aneurysmal subarachnoid hemorrhage (SAH) centered in the quadrigeminal cistern has been proposed as a variant of perimesencephalic non-aneurysmal SAH (PNSH). Some authors contest the existence of this entity, claiming it results either from head trauma or an undiscovered P2-P3 aneurysm, and conclude that all PNSH arise in front of the brainstem in a 'pretruncal' location. We report a patient with a quadrigeminal pattern of subarachnoid blood who was investigated with two digital catheter angiograms, including 3-D angiography, plus a high-resolution computed tomography angiogram. No abnormal findings were present and the patient had an excellent outcome. We propose that the more common pretruncal PNSH and less common quadrigeminal PNSH are two types of perimesencephalic SAH with separate, distinct etiologies, both of which have a more benign clinical course than aneurysmal SAH.
Theodore H Schwartz; Jeffrey Farkas
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  105     ISSN:  0303-8467     ISO Abbreviation:  Clin Neurol Neurosurg     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-14     Completed Date:  2003-06-18     Revised Date:  2009-10-14    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  95-8     Citation Subset:  IM    
Department of Neurological Surgery, Weill Cornell Medical College, New York Presbyterian Hospital, 525 East 68th, Box #99, New York, NY 10021, USA.
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MeSH Terms
Cerebral Angiography
Imaging, Three-Dimensional
Middle Aged
Subarachnoid Hemorrhage / pathology*
Tectum Mesencephali / pathology*
Tomography, X-Ray Computed

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