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Epidemiology of Cerebellar Astrocytomas in Children

This page was last updated on May 9th, 2017

Incidence and Prevalence

  • 0.75 per 100,000 person-years for children 0–19 years of age in the United States: Cerebellar astrocytomas comprise approximately 15% of all pediatric brain tumors (42,500–45,000 childhood CNS tumors per year in the United States) and 25% of posterior fossa tumors in children. 70% of all cerebellar astrocytomas occur in children (6, 9, 11).

Age Distribution

  • Childhood: Mean age at presentation is 7 years.  Cerebellar astrocytomas are rare in children younger than 1 year of age (2).

Sex Predilection

  • None: There is no reported sex predominance for cerebellar astrocytomas (3). 

Geographic Distribution

  • None known

Risk Factors

  • None known

Relationships to Other Disease States and Syndromes

  • None known

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