Special Indications in Gamma Knife Surgery

Autor: Jörg C. Tonn, Alexander Muacevic, S. Müller-Schunk, B. Wowra
Rok vydání: 2004
Předmět:
Zdroj: Gamma Knife Radiosurgery ISBN: 9783709172001
DOI: 10.1007/978-3-7091-0583-2_10
Popis: Pilocytic astrocytoma (PA) represent a rare indication for Gamma Knife Surgery. Mostly small remnants after surgical debulking are treated. The prognosis depend s on specific variants of biological and clinical criteria. In this regard we differentiated two groups of tumors; the so-called ‘typical’ tumors with a histological grading of WHO Grade I, no prior fractionated radiotherapy and no cystic component and the so called ‘typical’ tumors with either a malignant transformation, previous fractionated radiotherapy and/or cystic components. The outcome after GKS was much more favourable for typical PA than for atypical. In typical cases a high tumor control with a very low risk of side effects can be achieved.
Databáze: OpenAIRE