Glioma
This group comprises anaplastic astrocytomas and glioblastoma multiforme. Whereas the median overall survival of anaplastic (WHO grade III) gliomas is approximately 3 years, glioblastoma multiforme has a poor median overall survival of c. 15 months.
Cancer survival rates
The most common type of cancer among children and adolescents is leukemia, followed by brain and other central nervous system tumors. Survival rates for most childhood cancers have improved, with a notable improvement in acute lymphoblastic lymphoma (the most common childhood cancer). Due to improved treatment, the 5-year survival rate for acute lymphoblastic lymphoma has increased from less than 10% in the 1960s to about 90% during the time period 2003-2009.