These capillaries are adjacent to one another, with little or no intervening brain. The blood flow through these vessels is slow.
Cavernous angiomas can occur anywhere in the central nervous system.
Multiple lesions are common. The incidence of these lesions is 0.4 percent of the population. The mass effect can cause focal neurological signs, such as, weakness, numbness, double vision, visual disturbance, or language difficulties. MRI is the most sensitive test to identify these lesions. The cavernous angioma is represented as a well-defined, usually rounded lesion.