Which clinical history findings are characteristic 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

Usually, patients with erythema annulare centrifugum (EAC) present with an asymptomatic or pruritic eruption of variable duration. The eruption may be associated with an underlying disease (eg, infection, malignancy, sarcoidosis, other systemic illness) and its accompanying characteristic symptoms (eg, night sweats, fever, and chills for tuberculosis or Hodgkin lymphoma). [35]

EAC may precede malignancy by 2 years or more, but it can also occur concomitantly or after diagnosis.

The temporal relationship to other underlying diseases, if any, is also variable. Obtain a history of any antecedent infections.

A history of recent initiation of a new drug should be ascertained because many reports of medication-associated erythema annulare centrifugum exist (most commonly antimalarials, cimetidine, spironolactone, gold, salicylates, piroxicam, penicillin, and amitriptyline).

One case report [29] has described EAC as a manifestation of autoimmune progesterone dermatitis in a female with a recurring annular pruritic eruption. She experienced monthly exacerbations of the eruption a few days prior to onset of menses. A similar hormonal etiology has been reported in the case of a woman who developed EAC in the 33rd week of pregnancy. [36] The eruption resolved 1 month after delivery, without recurrence after 8 months of follow-up.


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