title: Rapid progression of early delayed radiation effect in pleomorphic xanthoastrocytoma.
abstract: Early delayed radiation effects are known to occur within several months after completing radiotherapy for brain tumors. We present marked changes of magnetic resonance imaging (MRI) scan that occurred one month after radiotherapy in a patient with a pleomorphic xanthoastrocytoma, which was eventually diagnosed as an early delayed radiation effect. Such an early development of dramatic MRI change has not been reported in patients treated with radiotherapy for pleomorphic xanthoastrocytomas.
authors.affiliation: Department of Neurosurgery, Korea University College of Medicine, Seoul, Korea.
authors.forename: Kyung Jae
authors.initials: KJ
authors.lastname: Park
authors.forename: Shin-Hyuk
authors.initials: SH
authors.lastname: Kang
authors.forename: Hoon Kap
authors.initials: HK
authors.lastname: Lee
authors.forename: Yong Gu
authors.initials: YG
authors.lastname: Chung