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Supratentorial ependymoma in children.

M Vinchon1, G Soto-Ares, L Riffaud

  • 1Services de Neurochirurgie Pédiatrique, CHRU de Lille, France. m-vinchon@chru-lille.fr

Pediatric Neurosurgery
|April 5, 2001
PubMed
Summary
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Supratentorial ependymomas (STE) in children are challenging to characterize. Complete resection and postoperative irradiation are crucial for improving survival rates in pediatric STE.

Area of Science:

  • Pediatric Neurosurgery
  • Pediatric Oncology
  • Neuro-oncology

Background:

  • Supratentorial ependymomas (STE) in children lack detailed clinical and pathological characterization in existing literature.
  • Most ependymoma studies group tumors by location and patient age, hindering specific understanding of STE.
  • Pathological descriptions of STE remain debated due to limited specific data.

Purpose of the Study:

  • To better characterize supratentorial ependymomas (STE) in pediatric patients.
  • To compare STE with infratentorial ependymomas (ITE) to delineate differences.
  • To suggest improved treatment guidelines for pediatric STE.

Main Methods:

  • Retrospective review of 18 children operated for STE between 1985 and 1999.
  • Comparison of clinical and pathological data of STE with infratentorial ependymomas (ITE).

Related Experiment Videos

  • Analysis of factors affecting survival, including extent of resection and histological grade.

    • Main Results:

    • Nearly half of pediatric STE cases occurred without connection to the ventricular system.
    • Intraoperative bleeding and basal ganglia infiltration complicated resection in 4 cases, contributing to mortality and morbidity.
    • Five-year overall survival and recurrence-free survival rates were 54% and 37%, respectively, significantly influenced by resection extent, not histological grade.

    Conclusions:

    • Extent of resection is a critical prognostic factor for pediatric supratentorial ependymomas (STE).
    • High recurrence rates necessitate specific treatment strategies.
    • Recommendations include limited postoperative irradiation for high-grade STE in older children and reoperation for subtotal removal or recurrence.