Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2009-5-15
pubmed:abstractText
The vascular structure of cavernous malformations (CMs) and arteriovenous malformations (AVMs) is different and they have differing clinical responses to radiosurgery. The structural differences of irradiated and non-irradiated CMs and AVMs were examined to clarify their differential responses to radiosurgery. CMs showed a greater ratio of intraluminal diameter to vessel wall thickness and a lack of subendothelial fibroblasts, myofibroblasts and smooth muscle cells compared with AVMs. Partial proteinaceous clots (19-22% of lumen) formed in CM sinusoids after radiosurgery but complete vaso-occlusion did not occur for up to 6 years after radiosurgery. In contrast, complete vaso-occlusion (91-98% of lumen) by fibrin thrombi that are permanent clots was observed in AVM vessels. Radiation-induced neuronal loss, neurofibrillary degeneration of neurons and myelin fragmentation were typical in the surrounding brain tissue of the irradiated lesions. The different structure and cellular composition of CMs and AVMs is likely to influence their responses to radiosurgery.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0967-5868
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
945-9
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Different responses of cavernous malformations and arteriovenous malformations to radiosurgery.
pubmed:affiliation
Prince of Wales Medical Research Institute, University of New South Wales, Sydney, New South Wales, Australia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't