Cavernous angiomas are histologically benign hamartomas, showing no potential for metastasis. Clinically, patients present with convulsions, hemorrhage, or signs of mass effect. Although many cases exhibit ossification on X-ray, the main means of diagnosis is computed tomography. This, in turn, has led to earlier diagnoses being made in much younger patients. Early diagnosis is a matter of urgency as patients are otherwise exposed to the continuing threat of rupture. As cavernous angiomas are operable, the prognosis is usually good.