AbstractWe report a case of typical erythema gyratum repens lesions observed as a manifestation of idiopathic hypereosinophilic syndrome in a 63‐year‐old man. While erythema gyratum repens is usually associated with malignancy, an intensive search over a 30‐month period failed to reveal any evidence of neoplasm. With administration of dapsone, the typical gyrate lesions disappeared as the subject's hypereosinophilia imp
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