Cavernous malformations Overview. A cerebral cavernous malformation is an abnormally formed blood vessel, shaped like a small mulberry, which… Symptoms. Cerebral cavernous malformations (CCMs) may exist without apparent symptoms. Obvious symptoms tend to occur… Causes. Most CCMs occur as a …
https://www.mayoclinic.org/diseases-conditions/cavernous-malformations/symptoms-causes/syc-20360941

