Korean J Dermatol.
1983 Feb;21(1):131-135.
Erythema Annulare Centrifugum due to Hamartoma of the Lung
Abstract
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Erythema annulare centrifugum consists of centrifugally erythematous eruption with central clearing producing arcuate, festooned, and polycyclic patterns. Its etiology is mostly obscure. However, a few of the patients seem to be related to some underlying diseaseas, such as autoimmune diseases, internal malignancies, drugs, or infections and often its course parallels to the process of the underlying diseases. 27 year old female patient showed eruption over the trunk and both extremities, enlarging centrifugally with clearing in the center with frequent upper respiratory tract infections from childhood. On the chest P-A, tumor mass was revealed, and it was confirmed as the hamartoma later. The eruption was disappeared totally 24 hours after surgical removal of the hamartoma. Hence, the hamartoma seemed to be responsible in this patient for the flare-up of the erythema annulare centrifugum, but its pathogenesis is not clearly understood. The diagnosis of the erythema annulare centrifugum was assisted by the histopathological finding.