Extracranial Metastasis of Supratentorial Ependymoma without Recurrence of Primary Focus

ABSTRACT

A case of supratentorial ependymoma in a 48-year-old man. After operation and radiological treatment, metastasis to scalp and cervical lymph node occurred, without recurrence of primary focus. 11 cases of intracranial ependymoma with extracranial metastasis were reviewed. Metastasizing intracranial ependymomas are 3 times as frequent in males and originate above tentorium. The most effective transmission of metastasis of ependymoma is through the blood stream and the frequent sites of metastasis are lungs, pulmonary hilus, mediatinum, liver, scalp, vertebra, femoral bone and cervical lymph nodes. Our case is the oldest among reported cases and metastasized to relatively rare site.