Sudden death due to massive intraventricular hemorrhage into an unsuspected ependymoma.

Intracranial neoplasms may be quiescent asymptomatically while growing insidiously until they impinge on vital structures or, because of their vascularity, lead to massive intracranial hemorrhage. We present such a case in a 4-year-old, previously asymptomatic child, who bled into an ependymoma and died in less than 36 hours.