Document Detail

White-matter lesions in MR imaging of clinically healthy brains of elderly subjects: possible pathologic basis.
MedLine Citation:
PMID:  3797666     Owner:  NLM     Status:  MEDLINE    
Patchy white-matter lesions occur in the magnetic resonance (MR) imaging brain studies of 20%-30% of neurologically healthy elderly subjects. To determine the frequency of histologically verifiable white-matter lesions at autopsy in such subjects the authors examined serial, microscopic, whole brain sections from 15 clinically healthy subjects aged 52-72 years. Small white-matter lesions were found in 12. In these 12, zones of atrophic perivascular demyelination were present in eight brains. These are not the familiar thrombotic, embolic, or ischemic vascular lesions that produce acute necrosis. This mild vascular insufficiency produces atrophy, which has been recognized in the pathology literature but whose clinical significance remains unknown. Other lesions seen were small vascular malformations in the centrum ovale in four brains, diverticula of the lateral ventricle extending into the white matter in three, and an isolated central white-matter infarction in one. All of these lesions are probably the basis of the patchy white-matter lesions seen on MR imaging studies in the neurologically healthy elderly population.
J B Kirkpatrick; L A Hayman
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Radiology     Volume:  162     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  1987 Feb 
Date Detail:
Created Date:  1987-02-13     Completed Date:  1987-02-13     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  509-11     Citation Subset:  AIM; IM    
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MeSH Terms
Brain / pathology*
Demyelinating Diseases / pathology
Magnetic Resonance Spectroscopy / diagnostic use*
Middle Aged

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

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