Descriptive epidemiology of ependymal tumours in the United States

J L Villano1, C K Parker, T A Dolecek

  • 1Departments of Medicine and Neurology, Division of Oncology, University of Kentucky, Lexington, KY, USA. jlvillano@uky.edu

Insights

Ependymomas impact children and adults, but pediatric patients face worse survival rates due to higher rates of aggressive anaplastic ependymomas and intracranial disease.

Area of Science:

  • Neuro-oncology
  • Epidemiology
  • Pediatric Oncology

Background:

  • Ependymomas are rare primary gliomas affecting both children and adults.
  • Survival rates for pediatric ependymoma patients are notably worse than for adults.

Purpose of the Study:

  • To evaluate the incidence and survival rates of ependymoma.
  • To identify factors contributing to survival disparities between pediatric and adult ependymoma patients.

Main Methods:

  • Utilized data from the Central Brain Tumor Registry of the United States and the SEER 13 registries.
  • Analyzed incidence and survival data for brain and central nervous system ependymal tumors.
  • Examined tumor site, histology, and age-adjusted incidence rates.

Main Results:

  • The incidence rate of ependymomas was 0.41/100,000.
  • Spinal cord tumors were more common in adults (50-60%), while brain tumors were more prevalent in children (approx. 80%).
  • Anaplastic ependymomas were more frequent in children (30%) than adults (3-5%), correlating with lower survival rates.

Conclusions:

  • Pediatric ependymoma cases exhibit worse outcomes compared to adults.
  • Higher percentages of anaplastic ependymomas and intracranial disease contribute to poorer pediatric survival.
  • Understanding these disparities is crucial for improving pediatric ependymoma treatment and outcomes.
Abstract

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