RT Journal Article
SR Electronic
T1 Immediate Shrinkage of Optociliary Shunt Vessels after Fractionated External Beam Radiation for Meningioma of the Optic Nerve Sheath
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1360
OP 1362
DO 10.3174/ajnr.A1063
VO 29
IS 7
A1 de Alba Campomanes, A.G.
A1 Larson, D.A.
A1 Horton, J.C.
YR 2008
UL http://www.ajnr.org/content/29/7/1360.abstract
AB SUMMARY: Fractionated stereotactic radiation has become the standard treatment of meningioma of the optic nerve sheath. The mechanism responsible for improvement in visual function is unclear, because neuroimaging after treatment usually shows no discernable change in tumor appearance. We report immediate regression of optociliary shunt vessels in a patient after radiation treatment of an optic nerve sheath meningioma. This observation indicates that radiation treatment can cause rapid reduction of optic nerve compression, even without appreciable reduction in the size of the meningioma.