Definition of Cavernous malformations
Cavernous malformations are abnormally formed blood vessels that have the appearance of a small mulberry in the brain or spinal cord. These malformations may be hereditary or they may occur on their own.
These malformations may leak blood, leading to bleeding in the brain (hemorrhage). This can cause neurological symptoms, depending on the location of your cavernous malformation in your nervous system. Your symptoms may include weakness or numbness in the face, arm or leg, unsteadiness, vision loss or double vision, and difficulties speaking or swallowing. Seizures also can occur. Repeat hemorrhages may occur soon after your initial hemorrhage (within weeks) or later after your initial hemorrhage (many months or years later), or repeat hemorrhages may never occur.