For evaluation of their cosmesis the lesions were documented with 2 photos each (white balanced flash and ambiance light) before and after treatment (standardized to 30 cm distance, circa 2 Mb resolution). Images were shown at the same week to 3 examiners being unaware whether images were taken pre- or post treatment. This was repeated twice at two weeks interval. As there is no validated hemangioma specific assessment tool a rating form was compiled in an expert discussion from validated scar and burns scales: Categorical items included "Vascularity" and "Height" from the Vancouver Scar Scale , "Irregularity" from the Hamilton burn scar rating form for photographic analysis and the "matte/shiny" classification from the Manchester Scar Scale . A 10 cm plastic surgery visual analogue scale provided non-categorical data on overall appearance.