What are capillary malformations?

Also known as: port-wine stain.

A capillary malformation is a flat, sharply defined small or large pink, red or purple birthmark (also called a port-wine stain), consisting of small blood vessels that may be found anywhere on the body, but most frequently on the head/neck area. They may grow in size and thicken as the child grows.

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Reviewed by: Jack Wolfsdorf, MD, FAAP

This page was last updated on: 1/29/2019 3:21:13 PM