By Mayo Clinic Staff
Cavernous malformations are abnormally formed blood vessels that have the appearance of a small mulberry. Cavernous malformations can occur anywhere in the body, but usually only create problems 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.
Symptoms may include weakness, numbness, difficulty speaking, difficulty understanding others, unsteadiness, vision changes, or severe headache. Seizures also can occur. Repeat hemorrhages can occur soon after your initial hemorrhage or much later, or a repeat hemorrhage may never occur.
July 23, 2015
- Mouchtouris N, et al. Management of cerebral cavernous malformations: From diagnosis to treatment. The Scientific World Journal. 2015:1.
- Singer RJ, et al. Vascular malformations of the central nervous system. http://www.uptodate.com/home. Accessed June 8, 2015.
- NINDS cerebral cavernous malformation information page. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/cavernous_malformation/cavernous_malformation.htm. Accessed June 8, 2015.
- Moore SA, et al. Long-term natural history of incidentally discovered cavernous malformations in a single-center cohort. Journal of Neurosurgery. 2014;120:1188.
- Riggs EA. Decision Support System. Mayo Clinic, Rochester, Minn. May 18, 2015.
- Moultrie F, et al. Outcome after surgical or conservative management of cerebral cavernous malformations. Neurology. 2014;83:582.
- Brown, Jr. RD (expert opinion). Mayo Clinic, Rochester, Minn. June 10, 2015.