How do I know I have a cerebral cavernous hemangioma?

How do I know I have a cerebral cavernous hemangioma?

Cerebral cavernous hemangiomas usually aren’t discovered until they rupture and bleed, which can cause symptoms including stroke or seizure. You could, however, have a rupture of a cavernous hemangioma and still never have any symptoms. In this case, a cavernous hemangioma would only be discovered if you had a brain scan for another reason.