title: Subungual Congenital Nevus with Recurrent Nevus Phenomenon.
abstract: Melanonychia is uncommon. We report the first case of histopathologic recurrence of a completely excised subungual congenital nevus that presented as congenital melanonychia.
authors.affiliation: Department of Dermatology, Royal Victoria Hospital, Belfast, UK.
authors.forename: Rami H
authors.initials: RH
authors.lastname: El-Khayat
authors.affiliation: Department of Burns and Plastic Surgery, Royal Victoria Hospital, Belfast, UK.
authors.forename: Abid
authors.initials: A
authors.lastname: Rashid
authors.affiliation: Department of Pathology, Royal Victoria Hospital, Belfast, UK.
authors.forename: Maureen Y
authors.initials: MY
authors.lastname: Walsh
authors.affiliation: Department of Dermatology, Royal Victoria Hospital, Belfast, UK.
authors.forename: Kevin E
authors.initials: KE
authors.lastname: McKenna
mesh_terms: D001707:Biopsy, Needle; D005260:Female; D005500:Follow-Up Studies; D006214:Hallux; D006801:Humans; D007150:Immunohistochemistry; D007223:Infant; D008991:Monitoring, Physiologic / Q000379:methods; D009260:Nail Diseases / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D009508:Nevus, Pigmented / Q000151:congenital / Q000473:pathology* / Q000601:surgery; D035583:Rare Diseases; D012878:Skin Neoplasms / Q000151:congenital / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome