title: Subungual blue nevus with combined phenotypic features.
abstract: Blue nail dyschromia may represent melanocytic, vascular, or other etiologies. A case of a subungual blue nodule is presented, with a pseudo-clubbed nail. On histopathologic examination, there was a combined subungual blue nevus, with features of a common blue nevus and a pigmented epithelioid melanocytoma. This unusual presentation is reviewed, with a discussion of blue nail dyschromia and subungual blue nevi.
authors.affiliation: Department of Dermatology, Brown Medical School, Providence, Rhode Island 02903, USA.
authors.forename: Elizabeth M T
authors.initials: EM
authors.lastname: Naylor
authors.forename: Beth S
authors.initials: BS
authors.lastname: Ruben
authors.forename: Leslie
authors.initials: L
authors.lastname: Robinson-Bostom
authors.forename: Gladys H
authors.initials: GH
authors.lastname: Telang
authors.forename: Nathaniel J
authors.initials: NJ
authors.lastname: Jellinek
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D009260:Nail Diseases / Q000235:genetics* / Q000473:pathology / Q000601:surgery; D018329:Nevus, Blue / Q000235:genetics*; D010641:Phenotype; D012878:Skin Neoplasms / Q000235:genetics* / Q000473:pathology / Q000601:surgery