A malignant blue naevus, with metastasis to regional lymph node.
D000328:Adult; D005528:Foot; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis / Q000473:pathology; D008297:Male; D009508:Nevus, Pigmented / Q000473:pathology