Erythema annulare centrifugum (EAC) is often associated with infectious, autoimmune or neoplastic diseases, nevertheless, the etiology and pathogenesis of this disease remain unclear.

• 摘要远心性环状红斑目前真正的原因不明，部份与感染性疾病、自体免疫疾病或肿瘤疾病有关。