A dural arteriovenous fistula (DAVF) is a direct connection between an artery and a vein in the dura mater (dura). There is an increased pressure in the efferent vein. read more
A cavernoma (also called cavernous hemangioma) is a vascular malformation consisting of small vessels, tangle, and sometimes calcifications and connective tissue. This can occur in the brain and in the spinal cord. read more
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