Introduction to Vascular Birthmarks
The term vascular birthmark refers to a benign lesion arising from blood vessels or components of blood vessels. They are seen at birth or within the first several months of life. Vascular birthmarks can be divided broadly into two groups: growths and malformations.
The most common growth is a hemangioma of infancy. Other less common growths include tufted angioma, kaposiform hemangioendothelioma, and hemangiopericytoma.
Vascular malformations can be classified according to their flow pattern (fast flow or slow flow) or by the involved blood vessel (artery, vein, capillary, lymphatic, combined).