TYR and vitiligo: It may be possible to explain the partial perifollicular pigmentation, and the changing of 84.2% of vitiligo from negative to positive for tyrosinase mRNA after curettage alone, by the activation and proliferation of hair follicle bulb melanocytes or inducement of dormant melanocytes found in the initial anagen phase of the normal hair follicle cycle.8 This is probably another melanocyte pigment source for grafted vitiligo.