A rare genodermatosis characterised by the presence of hyperpigmented and hypopigmented macules, principally located on the extremities and limbs.

A hemangioma is a benign tumor characterized by blood-filled spaces lined by benign endothelial cells. A hemangioma characterized by large endothelial spaces (caverns) is called a cavernous hemangioma (in contrast to a hemangioma with small endothelial spaces, which is called capillary hemangioma).