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Images taken using smartphone applications at 10× magnification (a and b). (a) Peripilar casts in lichen planopilaris. (b) Broken hairs and black dots in alopecia areata. Images taken using handheld microscope at 50× magnification (c and d). (c) Yellow dots and short regrowing hairs in alopecia areata. (d) Hair shaft variability and empty follicles in female pattern hair loss.
