Persistent intraventricular hematoma following ruptured aneurysm.

It is well known that intraventricular hematomas disappear within three weeks, as documented by computed tomography (CT). Recently we encountered a patient with an intraventricular hematoma, caused by rupture of an aneurysm of the anterior communicating artery, that persisted as a visible lesion on CT scans two months following the hemorrhage.