Neuroblastoma is one of the most frequently occurring solid tumors in children, especially in the first two years of life, when it accounts for 50% of all tumors. Neuroblastoma comprises 6-10% of all childhood cancers, and 15% of cancer deaths in children. It is the second most common cause of death in children, only preceded by accidents. The cause of neuroblastoma is unknown, though most physicians believe that it is an accidental cell growth that occurs during normal development of the adrenal glands and sympathetic ganglia.





