What is a vascular malformation?
A vascular malformation is another type of birthmark, or congenital (present at birth) growth, made up of arteries, veins, capillaries, or lymphatic vessels. There are several different types of malformations and they are named according to which type of blood vessel is predominantly affected. A vascular malformation is also known as lymphangioma, arteriovenous malformations, and vascular gigantism.
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