Intraventricular hemorrhage caused by intraventricular meningioma: CT appearance.

Intraventricular meningioma is a rare tumor with approximately 170 previously reported cases (1–7). Despite this it is the most common intraventricular tumor in adults, in whom it is most often located in the trigone of the lateral ventricle (1, 2). Computed tomography (CT) features are similar to meningiomas elsewhere, and in most cases they appear as well-defined high-attenuation masses that show marked enhancement (1, 2). Presentation with subarachnoid hemorrhage is rare (9). We describe a case of intraventricular hemorrhage attributable to intraventricular meningioma and present the CT appearance.