Reirradiation of Recurrent Tumors in Central Nervous System in Children and Adolescents

Abstract

I n Cuba, tumors of the Central Nervous System (CNS) for children and adolescents account between 18 and 20% of all tumors in this group of age. 1-3 The main methods of treatment are surgery, radiotherapy, and chemotherapy. 4 Radiation therapy is a major treatment avenue in medulloblastomas, primitive neuroectodermal tumor (PNET) in some cases of germinomas consist of craneospinal irradiation (CS), and a supplementary boost to the post-operative tumor bed, followed by chemotherapy. In