What is the prognosis of erythema annulare centrifugum (EAC)?

Updated: Mar 06, 2020
  • Author: Dirk M Elston, MD; Chief Editor: William D James, MD  more...
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Answer

The prognosis for erythema annulare centrifugum (EAC) is excellent, except when associated with an underlying malignancy and other systemic disease. The mean duration of erythema annulare centrifugum (EAC) is 11 months. However, the course has ranged from 4-6 weeks to 34 years (recurrent attacks). Most cases require no treatment and resolve spontaneously. Others have been reported in association with malignancy, with the eruptions responding to treatment of the underlying neoplasm. In those cases, the prognosis is affected by the underlying malignancy. Annually recurring erythema annulare centrifugum (AR EAC) was reported in 2015. [34] Treatment of the underlying disorder is effective. If associated with pregnancy, it resolves after delivery.


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