Oligodendroglioma in childhood

Area of Science:

• Pediatric Neurosurgery
• Neuro-oncology
• Pediatric Pathology

Background:

• Oligodendroglioma (ODG) is a primary brain tumor that can occur in children.
• Understanding the incidence, location, and prognosis of pediatric ODG is crucial for effective management.

Purpose of the Study:

• To determine the proportion of oligodendrogliomas among pediatric primary intracranial tumors.
• To analyze the anatomical locations of pediatric oligodendrogliomas.
• To evaluate the prognostic significance of histological grading in childhood oligodendrogliomas.

Main Methods:

• Retrospective analysis of 15 surgically confirmed pediatric oligodendroglioma cases.
• Data collected from January 1985 to April 1992 at Seoul National University Children's Hospital.
• Inclusion criteria: patients under 16 years old with oligodendroglioma.

Main Results:

• Oligodendrogliomas constituted 5.6% of pediatric primary intracranial tumors operated on during the study period.
• Tumor locations included cerebral hemispheres (9 cases), thalamus (1), pons-medulla (2), cerebellum (2), and thoracolumbar spinal cord (1).
• Four tumors were anaplastic, and one showed positive cerebrospinal fluid (CSF) cytology; both correlated with poor outcomes. Benign cerebral hemisphere ODG (7 cases) presented with seizures, often controlled post-surgery.

Conclusions:

• Pediatric oligodendrogliomas are uncommon and exhibit diverse locations.
• Histological grade and CSF cytology are significant prognostic indicators in childhood oligodendroglioma.
• Surgical removal of benign cerebral oligodendrogliomas in the cerebral hemispheres can lead to seizure control.