Open AccessPeritumoral Brain Edema Associated with Meningiomas
Author(s) -
K. G. Go,
J. T. Wilmink,
W.M. Molenaar
Publication year - 1988
Publication title -
neurosurgery/neurosurgery online
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.485
H-Index - 34
eISSN - 1081-1281
pISSN - 0148-396X
DOI - 10.1227/00006123-198808000-00008
Subject(s) - medicine , edema , brain edema , computed tomographic , cerebral edema , pathology , ventricle , white matter , magnetic resonance imaging , radiology , computed tomography
Although generally benign, meningiomas may be associated with extensive peritumoral brain edema, as visualized on computed tomographic (CT) scans. An analysis of 38 meningiomas indicated that severity of edema on CT scans positively correlated with tumor size and also with evidence of disruption of the cortical layer, which initially separates the tumor from the white matter, in which edema tends to accumulate. The various histological subtypes also seemed to be distinct in their tendency to induce edema, with the transitional and meningotheliomatous subtypes associated with the more severe grades of edema. There was no correlation between grade of edema and location of the tumor. Contact of the edematous area or the tumor itself with the ventricle, which is relevant to the possibility of drainage of edema fluid into the ventricle, seemed to occur in cases of the more severe grades of edema rather than in cases showing slight or no edema.