Giant pigmented hairy nevus in two siblings.
D000005:Abdomen; D001415:Back; D001706:Biopsy; D002081:Buttocks; D002675:Child, Preschool; D005260:Female; D006197:Hair; D006801:Humans; D007223:Infant; D008297:Male; D008545:Melanoma / Q000150:complications; D008548:Melanosis / Q000150:complications; D009508:Nevus, Pigmented / Q000150:complications / Q000235:genetics*; D010375:Pedigree; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000150:complications / Q000235:genetics*; D013848:Thigh