• Journal of Korean Neurosurgical Society
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• v.50 no.3
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• pp.244-247
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• 2011

Two-thirds of ependymomas arise in the infratentorial or intraventricles, whereas one-third are located supratentorially. But supratentorial "cortical" ependymomas are very rare. We report a case of a cortical ependymoma in a 21-month-old boy. The patient presented with simple partial seizures. This tumor was located in the postcentral gyrus and he had gross total excision. Microscopy and immunohistochemistry showed grade II differentiation ependymoma.

• Journal of Korean Neurosurgical Society
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• v.57 no.6
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• pp.487-490
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• 2015

We report a 10-year-old boy with supratentorial cortical ependymoma that rapidly grew in the course of 3 years. He suffered generalized seizures when he was 5 years old; MRI showed a small cortical lesion in the right postcentral gyrus. MRI performed 2 years later revealed no changes. For the next 3 years he was free of seizures. However, at the age of 10 he again suffered generalized seizures and MRI disclosed a large parietal tumor. It was resected totally and he remains free of neurological deficits. The histopathological diagnosis was ependymoma. Pediatric supratentorial cortical ependymomas are extremely rare. We recommend including cortical ependymoma as a differential diagnosis in pediatric patients with cortical mass lesions presenting with seizures and careful follow-up even in the absence of symptoms because these tumors may progress.