Evan was born with a port wine stain that stretches from below his right eye to his cheek.
From the edition.cnn.com
An exception is the massive port-wine stain with which Michael Wood was born nearly five years ago.
From the time.com
A birthmark is almost always harmless and, apart from a port wine stain, most will disappear by the age of five.
From the mirror.co.uk
Hank has returned from the First World War missing a hand, while Laurel's port-wine stain birthmark sees her ostracised by locals who still cling to old folksy superstitions and think her a witch.