We report a 13-year-old girl with severe pustular psoriasis who had an excellent response to treatment with adalimumab after failure with methotrexate, acitretin, cyclosporin, phototherapy, and biologic drugs including etanercept and infliximab.
We believe that our patient has presented two different reactions with different clinical outcome and histopathology, which are unlikely to be due to cross-reactivity between the drugs involved. We have found no similar coincidences reported int the literature.
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