Document Detail

Microvasculature in germinal matrix layer: its relationship to germinal matrix hemorrhage.
MedLine Citation:
PMID:  1924278     Owner:  NLM     Status:  MEDLINE    
Microvasculature in the germinal matrix layer (GML) was studied by postmortem microangiography and stereomicroscopic observation on cleared specimens in methyl salicylate. A number of arterioles from penetrating and medullary branches of main cerebral arteries were distributed in the GML, forming a fine network of arterioles anastomosing with each other. Many venules in the GML converged at a few points and drained into subependymal veins. The main converging zone of venules was situated inside the GML close to the border zone of the GML and adjacent cerebral parenchyma. The converging zone coincided with the site of GML hemorrhage. Thus, many factors, including both venous and arterial, appear to influence circulation in the GML; ultimately the converging zones become overloaded and rupture, leading to GML hemorrhage.
Y Nakamura; T Okudera; T Hashimoto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc     Volume:  4     ISSN:  0893-3952     ISO Abbreviation:  Mod. Pathol.     Publication Date:  1991 Jul 
Date Detail:
Created Date:  1991-10-28     Completed Date:  1991-10-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8806605     Medline TA:  Mod Pathol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  475-80     Citation Subset:  IM    
Department of Pathology, St. Mary's Hospital, Kurume, Japan.
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MeSH Terms
Arterioles / ultrastructure
Arteriovenous Anastomosis / ultrastructure
Brain / blood supply*,  pathology,  ultrastructure
Brain Diseases / pathology*
Hemorrhage / pathology*
Infant, Newborn
Microcirculation / ultrastructure
Microscopy / methods

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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