port wine stain
US /ˌpɔːrt waɪn ˈsteɪn/
UK /ˌpɔːrt waɪn ˈsteɪn/

1.
mancha vinho do porto, hemangioma plano
a birthmark in which a large area of the skin is a reddish-purple color, caused by a vascular anomaly (capillary malformation)
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The child had a prominent port-wine stain on her cheek.
A criança tinha uma proeminente mancha vinho do porto na bochecha.
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Laser treatment can help lighten a port-wine stain.
O tratamento a laser pode ajudar a clarear uma mancha vinho do porto.