title: Sub-ungual malignant melanoma presenting as sub-acute paronychia following trauma.
abstract: A woman presenting with a history of trauma to her thumb, apparently followed by sub-acute paronychia, is subsequently shown to have primary malignant melanoma at the site. The case serves as a reminder that wolves can appear in sheep's clothing.
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D005383:Finger Injuries / Q000150:complications; D006801:Humans; D008545:Melanoma / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D008875:Middle Aged; D009262:Nails; D010304:Paronychia / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D013933:Thumb / Q000293:injuries*