Subependymal Giant Cell Astrocytoma with a Large Third Ventricular Hematoma

ABSTRACT

Subependymal giant cell astrocytoma(SEGA) is the most common intracranial tumor in patients with tuberous sclerosis(TS) and relatively benign tumor that arises in the subependymal layer of the lateral ventricle. It may occur independently, or in association, with TS and usually is found in adolescents and young adults. However, it is extremely rare that SEGA has caused intratumoral and intraventricular hemorrhage. We are reporting a case with a large third ventricular hematoma well encapsulated with fibrous tissue, originating in SEGA around foramen Monro of the lateral ventricle.