Nevus simplex on the nape of the neck.
Port-wine stain (capillary malformation) on the cheek of a newborn.
Port-wine stain (capillary malformation) over the mandibular skin and ear in a newborn.
Port-wine stain (capillary malformation) over the back of a newborn.
Dark red port-wine stain with central blebbing in a 14-year-old female.
Typical light pink port-wine stain in a 3-year-old male.
Port-wine stain on an infant with the Sturge–Weber syndrome.
Hypertrophy of the left arm and hand in a 6-year-old male with Klippel–Trenaunay syndrome.
Port-wine stains (capillary malformations) are the most common type of vascular malformation. Eyelid, central forehead, occipital, nuchal, and lower back lesions are common in light skinned newborns. They differ from true port-wine stains and have been called nevus simplex.