Document Detail

Concurrence of subependymoma and heterotopic leptomeningeal neuroglial tissue.
MedLine Citation:
PMID:  6687529     Owner:  NLM     Status:  MEDLINE    
Heterotopic neuroglial tissues in the leptomeninges are generally regarded as developmental malformations. They are uncommon in the general population (1%) but are more often found in patients with other CNS maldevelopments (25%). Of the 22 cases of subependymoma available for our study, four (18.2%) had concurrent heterotopic neuroglial tissue. The great majority of these neuroglial heterotopias were located over the brain stem and were topographically close to the subependymomas. Since the histogenetic nature of subependymoma, whether it represents a local maldevelopment (hamartoma) or a true neoplasm, is still uncertain, the concurrence of subependymoma and heterotopic leptomeningeal neuroglial tissue seems to support the concept that the tumor is a maldevelopment rather than a true neoplasm.
K L Ho
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Archives of pathology & laboratory medicine     Volume:  107     ISSN:  0003-9985     ISO Abbreviation:  Arch. Pathol. Lab. Med.     Publication Date:  1983 Mar 
Date Detail:
Created Date:  1983-04-07     Completed Date:  1983-04-07     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7607091     Medline TA:  Arch Pathol Lab Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  136-40     Citation Subset:  AIM; IM    
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MeSH Terms
Cerebral Ventricle Neoplasms / pathology*
Dementia / complications
Ependymoma / pathology*
Hydrocephalus / complications
Middle Aged
Urinary Incontinence / etiology

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

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