Linked Life Data

8827029

Source:http://linkedlifedata.com/resource/pubmed/id/8827029

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
1996-10-31
pubmed:abstractText
Although embolization of meningiomas has been performed for many years as a preoperative adjunct to reduce tumor vascularity and facilitate surgical excision, little has been written about the features of the histological artefacts introduced by the process. In particular, the fact that it may produce tumor necrosis may potentially cause confusion with atypical or malignant meningiomas. In this study, 25 meningeal tumors of different histological subtypes, all of which had been previously embolized, were reviewed histologically as well as with immunostaining for the MIBI antigen and proliferating cell nuclear antigen (PCNA). Necrosis, in the form of confluent necrosis as well as micronecrosis, was the most common feature (48%). Other characteristic features included florid ischemic changes (16%), intravascular Ivalon particles (24%), and fibrinoid necrosis of vascular walls (12%). Histological changes showed no obvious relationship with the interval between embolization and surgery. There was an increase in MIB1 and PCNA labelling indices in those tumor exhibiting necrotic foci, but it did not seem to have any prognostic significance. We believe pathologists should be familiar with the histological changes induced by embolization in meningiomas so that an erroneous diagnosis of a high-grade lesion will not be made.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1224-30
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Histopathology of post-embolized meningiomas.
pubmed:affiliation
Department of Anatomical and Cellular Pathology, Chinese University of Hong Kong, Shatin, Hong Kong.
pubmed:publicationType
Journal Article