Children with megalencephaly-capillary malformation-polymicrogyria syndrome are characterized by capillary malformations on the face, particularly on the nose, the upper lip and the area between the nose and the philtrum. The deep red port wine stain in the center of the philtrum, which can also spread to the lateral parts of the lip, is called a mesotropic port wine stain. Although it is not diagnostic for this syndrome, it is indicative.
Mesotropic Port-wine stain
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- Poliner A et al. (2022) Port-wine Birthmarks: Update on Diagnosis, Risk Assessment for Sturge-Weber Syndrome, and Management. Pediatr Rev 43:507-516.