A cavernous angioma is a blood vessel abnormality characterized by clusters of large capillaries. They can occur anywhere in the central nervous system but can also be found in the skin and retina as well. Cavernous angiomas can be described as having a “raspberry-like” appearance because of their many bubble-like caverns. Symptoms may include seizures, headaches and hemorrhaging and compression of brain tissue. Patients can be diagnosed by having a doctor administer an MRI scan. Patients that experience seizures as a result of cavernous angiomas are likely to become symptomatic again, so treatment may involve surgery. Symptoms typically worsen over time, so medical attention is highly important for patients with symptomatic cavernous angiomas.