[Radiation-induced meningioma--a case report].

Area of Science:

• Pediatric neuro-oncology
• Radiation oncology
• Neuropathology

Background:

• A pediatric patient received radiation therapy for a third ventricle tumor.
• The patient underwent a ventriculo-atrial shunt procedure.
• Total irradiation dose was 4170 rad via a single left temporal portal.

Observation:

• The patient developed right hemiparesis and seizures 14 years post-treatment.
• Imaging revealed a left fronto-temporal tumor.
• Histological examination confirmed a transitional type meningioma.

Findings:

• This represents a rare case of post-irradiation meningioma in a pediatric patient treated for a brain tumor.
• Literature review identified only 18 cases of meningiomas following irradiation for brain tumors.
• The patient experienced a favorable post-operative outcome with minimal residual deficits.

Implications:

• Long-term oncological surveillance is crucial for patients treated with radiation for pediatric brain tumors.
• Understanding the latency period of radiation-induced meningiomas is essential for clinical management.
• This case contributes to the limited data on secondary meningiomas following therapeutic radiation in children.