Precursors to malignant melanoma: congenital and dysplastic nevi.
D002675:Child, Preschool; D006801:Humans; D008545:Melanoma / Q000175:diagnosis*; D009508:Nevus, Pigmented / Q000151:congenital / Q000175:diagnosis* / Q000235:genetics; D011230:Precancerous Conditions / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis*