Cavernomas are a type of vascular malformation (abnormal blood vessels) that occur in children and adults. They are often found in the brain but can also form in the spine or retina in rare cases.
There are two main types of cavernomas:
- The sporadic form is the more common type. People with this form usually only have one cavernoma.
- The familial form is genetic, meaning it is caused by an inherited gene mutation that can be passed down from parent to child. This type accounts for about 20% of all cases. People with the familial type usually have more than one cavernoma.