Boos MD, Bozarth XL, Sidbury R, et al. - In this retrospective cohort study of children with forehead port-wine stains (PWS), researchers sought to identify children at greatest risk of Sturge-Weber Syndrome (SWS). They classified PWS as “large segmental” (half or more of a contiguous area of hemi-forehead or median pattern) or “trace/small segmental” (less than half of the hemi-forehead). Data reported that 96 children (51 had large segmental and 45 had trace/small segmental PWS) had forehead PWS. The authors discovered that children with large segmental forehead PWS are at greatest SWS risk.