What is subependymal giant cell astrocytoma (SEGA)?

Dr. Aria Fallah, MD

Subependymal giant cell astrocytoma (SEGA) is a noncancerous brain tumor. It can cause problems by growing. One of the main problems it can cause is obstruction of the brain fluid from being normally circulated throughout the brain. An obstruction of the brain fluid can cause a very serious and sometimes life-threatening problem where surgery may be needed right away. But if this is detected early and followed, most of the time it can be treated with a specific medication called everolimus. This tends to shrink the tumors the vast majority of the time. If that doesn't work, then surgery is always an option.

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