###Human: Does a flat brown spot with flaky edges indicate melanoma? ###Assistant: Hello. The bigger brown patch is cafe-au-lait macule and the small one is probably an atypical nevus (attachment removed to protect patient identity). That is not melanoma clinically to me. Melanoma is very rare at a young age like in your case and obviously very rare in brown skin color. You are doing good that you are doing skin biopsy for tissue diagnosis so that no confusion is left but it is less likely to be melanoma.