A Case of Erythema Annulare Centrifugum due to Tinea Pedis

Abstract

A case of erythema annulare due to tipea pedis is reported. A 33-year-old Japanese female had several, pruritic, annular erythema on the limb for eight years.
The lesions appeared during the warm months of the year and subsided spontaneously during the winter. Trichophyton rubrum was isolated from scaly tinea pedis. The trichophytin skin test showed positive reaction at 48 hours and produced annular erythema at two weeks. The lesions was treated with oral terbinafine, antihistamin, topical steroid. The lesion disappeared one month later without recurrence. On the basis of above mentioned evidences, we believe the present case of erythema annulare centrifugum is dermatophytid.