Malignant melanoma developing in a tattoo.
D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008545:Melanoma / Q000209:etiology* / Q000473:pathology; D008875:Middle Aged; D012878:Skin Neoplasms / Q000209:etiology* / Q000473:pathology; D013653:Tattooing