title: [A case of malignant blue nevus].
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D009508:Nevus, Pigmented / Q000276:immunology / Q000473:pathology* / Q000648:ultrastructure; D012878:Skin Neoplasms / Q000276:immunology / Q000473:pathology* / Q000648:ultrastructure