• Nevus flammeus has been described as an inherited vascular anomaly. We report two cases of nevus flammeus, each appearing in one of two monozygotic twins. This finding supports the idea that nevus flammeus results from embryologic mishap rather than genetic transmission.
Shamir R, Kohn G, Metzker A. Nevus Flammeus: Discordance in Monozygotic Twins. Am J Dis Child. 1991;145(1):85–86. doi:10.1001/archpedi.1991.02160010091022
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