A 36 year–old factory worker developed itchy, annular scaly plaques in both groins. Application of a corticosteroid ointment led to temporary relief but the plaques continued to extend at the periphery.The most likely diagnosis is –
Tinea cruiris is dermatophytic infection of groin. Presence of bilateral, annular scaly plaques in the groin, itching and unresponsiveness to steroids and peripheral extension, all suggest the diagnosis of Tinea cruris.
Erythema annulare centrifugum
Granuloma annulare
Annular lichen planus
Tinea cruiris