What causes erythema annulare centrifugum?

What causes erythema annulare centrifugum? The pathogenesis of erythema annulare centrifugum (EAC) is unknown, but it is probably due to a hypersensitivity reaction to a variety of agents, including drugs, arthropod bites, infections (bacterial, mycobacterial, viral, fungal, filarial), ingestion (blue cheese Penicillium), and malignancy. Is erythema annulare centrifugum an autoimmune Read more…