Hemangiomas are benign blood vessel tumors with a higher predilection for women in the middle decades of life. They are most often seen solitarily in the frontal and parietal bones but can affect any region of the calvaria. Most calvarial hemangiomas are histologically classified as cavernous, meaning that they are composed of dilated blood vessels lined by a single epithelial layer contained within the bony trabeculae.