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Gamma Knife Surgery for the Pineal Region Tumors

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Authors
Cho, Sung Yun; Park, Chul-Kee; Chung, Hyun-Tai; Paek, Sun Ha; Kim, Dong Gyu
Issue Date
2006-11
Publisher
Journal of Korean Neurosurgical Society
Citation
J Korean Neurosurg Soc 40:342-345,2006
Keywords
Gamma knife surgeryRadiosurgeryPinealPineal parenchymal tumor
Abstract
Objective : Gamma Knife Surgery(GKS) for the management of pineal region tumors is challengeable strategy as direct access to this area is not easy. The experiences of pineal region tumor patients treated with GKS were analyzed to evaluate the effectiveness.

Methods : Seven patients with tumors in the pineal region were treated with GKS between September 1998 and May 2005. The histological diagnosis were pineal parenchymal tumor (2 patients), low-grade astrocytoma (2 patients), immature teratoma (1 patient), and choriocarninoma (1 patient). One patient was diagnosed as metastatic brain tumor based on histological diagnosis for primary site and brain imaging study. The median marginal dose was 15Gy (range; 11~20) at the 50% isodose line. The median target volume was 2.5cm3 (range; 0.8~12.5). The median clinical follow up period was 29 months (range; 13~93) and the median radiological follow up period was 18 months (range; 6~73).

Results : Tumor volume measured in follow-up images showed reduction in six patients, disappearance in one. No adverse effect due to GKS was found during the follow-up period . The performance status was preserved in all patients except one who died due to progression of primary cancer in spite of controlled metastatic brain lesion.

Conclusion : Gamma Knife Surgery can be applied to pineal region tumors irrespective of their histology whenever surgery is not indicated.
ISSN
2005-3711
1225-8245
Language
English
URI
http://hdl.handle.net/10371/74213
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College of Medicine/School of Medicine (의과대학/대학원)Neurosurgery (신경외과학전공)Journal Papers (저널논문_신경외과학전공)
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