KITLG and freckles: The dermal expression of SCF was increased in the lesional skin of Riehl’s melanosis (H score, mean ± SD = 17.77 ± 5.53) compared to normal-appearing perilesional skin (H score, mean ± SD = 10.43 ± 2.95; p = 0.04) and that of the healthy controls (H score, mean ± SD = 7.65 ± 2.89; p = 0.02; Figure 4).