Rhabdomyosarcoma is one of the most common malignant solid tumors of children and adolescents. This book provides a comprehensive review of current knowledge and addresses the many complex issues in the diagnosis and treatment of the tumor. It represents the results of 15 years of research by the Intergroup Rabdomyosarcoma Study, which is a large, multi-national, collaborative project that has made significant progress in elucidating the epidemiological, biological, and clinical characteristics of these malignancies. All researchers, pediatricians, and other physicians who work with Rhabdomyosarcoma will find an incredible amount of valuable information in this book.