History:

Erythema annulare centrifugum is the commonest of the annular erythemas.It may have a trailing scale just behind the expanding edge of a lesion.This patient had multiple lesions some of which joined up to form larger polycyclic shapes.The lesions generally resolve over a three week period.Cases can be associated with infections,drugs,underlying collagen diseases such as lupus erythematosus and rarely internal malignancy.Look for fungus in the feet and groin first.No cause was ever found in the above patient.The rash would respond to topical steroids.

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