Background: Erythema marginatum is one of the main Jones diagnostic criteria for rheumatic fever. However, since it rarely occurs in industrialized countries, this diagnosis is seldom suspected, especially in adult patients.
Case report: We report a case of an annular facial eruption associated with fever and polyarthralgia seen twice in a 30-year-old woman following episodes of streptococcal throat infection.
Discussion: This case report underlines the fact that the rheumatic fever has not completely disappeared in the highly developed countries. Dermatologists should be careful not to overlook its clinical manifestations and should be vigilant about potential cardiac complications.