There are many differences between hemangiomas and vascular malformations. Hemangiomas, made up of capillaries, tend to grow throughout the first year of life and then regress. Vascular malformations are made up of arteries, veins, or lymphatic channels depending on the type of malformation. Vascular malformations also tend to grow throughout life and usually will require some type of intervention.
Many people call them stork's bite or angel's kisses, but vascular birthmarks (medically called vascular anomalies) are abnormal blood vessels that people are born with. Most often, you'll see them on a baby's skin not long after they're born. But they can also be found deeper than the skin and are discovered later in life as they grow.
The characteristics of this syndrome are a mixed venous-lymphatic malformation usually involving the extremities. There is usually a port wine like stain on the affected limb and there is usually a difference in size between the affected and nonaffected limb, the affected one being larger.
Its characteristics are a port-wine stain that involves the skin around the eye and cheek as well as the covering of the brain; seizures; atrophy of the brain tissue; and developmental delay. Early diagnosis is important to allow control of seizures and monitoring of eye pressures by an ophthalmologist to help preserve vision.