title: Erythema annulare centrifugum.
abstract: Erythema annulare centrifugum (EAC) is a gyrate erythema, which is typically characterized by annular, erythematous plaques with trailing scale. It is considered to be a reactive condition with a wide variety of inciting causes but unclear pathophysiology. The mean duration of the eruption is 11 months. We present a patient with a 50-year history of recurrent EAC with no known cause. Although it does follow a previously reported pattern of seasonal recurrence, this case represents the longest reported duration of EAC.
authors.affiliation: The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, USA.
authors.forename: Adnan
authors.initials: A
authors.lastname: Mir
authors.forename: Vitaly
authors.initials: V
authors.lastname: Terushkin
authors.forename: Max
authors.initials: M
authors.lastname: Fischer
authors.forename: Shane
authors.initials: S
authors.lastname: Meehan
mesh_terms: D000369:Aged, 80 and over; D004890:Erythema / Q000473:pathology*; D006801:Humans; D007868:Leg Dermatoses / Q000473:pathology; D008297:Male; D012008:Recurrence; D013997:Time Factors