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Prognostic implications for gadolinium enhancement of the meninges in low-grade astrocytomas of childhood
Prognostic implications for gadolinium enhancement of the meninges in low-grade astrocytomas of childhood PEDIATRIC NEUROSURGERY Hurwitz, M. D., Burger, P. C., Goldthwaite, P. T., Tihan, T., Wharam, M. D., Fisher, P. G. 2001; 34 (2): 88-93Abstract
Persistent gadolinium enhancement on MRI of the meninges in some children with low-grade astrocytomas (LGA) is a widely recognized phenomenon. The relationship of this finding with the clinical course is unclear.From a consecutive cohort of 282 children with pathologically confirmed LGA we identified all patients with asymptomatic gadolinium enhancement of the meninges found on surveillance MRI. A nested case-control study was performed, comparing patients with meningeal enhancement to controls without enhancement.Twenty-one children were identified with meningeal enhancement. The median follow-up was 5.2 years with enhancement noted for a median of 2.2 years. The 5-year overall survival for this cohort was 91.2% (Greenwood SE 8.0%), and the 5-year progression-free survival was 20.9% (SE 11.9%). Five patients are now free of disease, while 15 continue to have stable disease. The overall and progression-free survival was not significantly different compared to controls.Gadolinium enhancement of the meninges on MRI may occur in a significant number of children with LGA, particularly juvenile pilocytic astrocytoma, but does not appear to affect progression-free or overall survival. Change in management based on this finding alone is unwarranted.
View details for Web of Science ID 000167991100005
View details for PubMedID 11287808