title: Recurrent postauricular blue nevus with lymph node involvement.
mesh_terms: D000293:Adolescent; D004428:Ear Neoplasms / Q000473:pathology* / Q000601:surgery; D004431:Ear, External / Q000473:pathology; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000473:pathology* / Q000601:surgery; D009508:Nevus, Pigmented / Q000473:pathology* / Q000601:surgery; D012867:Skin / Q000473:pathology; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery