Hemangioma A hemangioma is a type of birthmark. It is the most common benign (noncancerous) tumor of the skin. Hemangiomas may be present at birth (faint red mark) or may appear in the first months after birth.
Lymphatic Malformations A lymphatic malformation is a lymphatic vessel that isn't formed correctly. Learn more about this condition.
Vascular Malformations Vascular malformations and hemangiomas are commonly known as “birthmarks.” They can be present at birth or appear in the first months of life.