Abstract
In early childhood medulloblastoma, three distinct treatment strategies are currently used by different national groups to improve survival rates and to delay or avoid craniospinal radiotherapy: (1) systemic chemotherapy and high-dose chemotherapy, followed by radiotherapy at relapse; (2) systemic and intraventricular chemotherapy; (3) systemic chemotherapy and local conformal radiotherapy. A role for high-dose chemotherapy to delay or avoid craniospinal radiotherapy as a part of multimodal treatment strategies, especially in young children with metastatic or postoperative residual disease, has been recognized by different co-operative groups. Clinical and histological factors such as nodular-desmoplastic variants are considered as important prognostic factors for risk-adapted treatment recommendations.
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