title: Pregnancy-associated acquired arteriovenous malformation of the nail unit: a novel cause of localized erythronychia.
abstract: Localized longitudinal erythronychia describes a solitary red streak limited to a single nail unit. Localized longitudinal erythronychia can be caused by both benign and malignant entities. Most commonly, the cause is a benign process, such as an onychopapilloma. We report a case of an acquired subungual arteriovenous malformation that presented as localized longitudinal erythronychia during pregnancy. To our knowledge, this is the first report of localized longitudinal erythronychia arising from a pregnancy-associated arteriovenous malformation of the nail unit.
authors.affiliation: Department of Dermatology, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA 19104-6142, USA.
authors.forename: Suthinee
authors.initials: S
authors.lastname: Rutnin
authors.forename: Jennifer V
authors.initials: JV
authors.lastname: Nguyen
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Miller
authors.forename: Danielle
authors.initials: D
authors.lastname: DeHoratius
authors.forename: Adam I
authors.initials: AI
authors.lastname: Rubin
mesh_terms: D001165:Arteriovenous Malformations / Q000209:etiology / Q000473:pathology*; D005260:Female; D006801:Humans; D009260:Nail Diseases / Q000209:etiology / Q000473:pathology*; D009262:Nails / Q000473:pathology*; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000473:pathology*; D012878:Skin Neoplasms / Q000209:etiology / Q000473:pathology*