Erythema Multiforme Is Not Always Erythema Multiforme
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Keywords
medical dermatology, lupus, rowell syndrome, erythema multiforme, corticosteroids
Abstract
Rowell syndrome (RS) describes the rare presentation of EM like lesions found in association with a diagnosis of lupus erythematosus (LE). Major diagnostic criteria includes LE, EM, and anti-nuclear antibodies. Minor criteria includes of chilblains, anti-Ro/anti-La antibodies, and rheumatoid factor. We present a 26-year-old white male seen in consultation for chronic erythema multiforme (EM) with a duration of 6 months unresponsive to treatment. Prior to our evaluation, he had been seen by another dermatologist and was diagnosed with biopsy-proven EM. His rash did not respond to previous treatment, including corticosteroids and antifungals. Lab results showed a positive ANA and positive anti-Ro antibody. The patient met diagnostic criteria for RS and was started on hydroxychloroquine 200 mg twice daily. Improvement was noticed two weeks after beginning treatment. Our case demonstrates that an atypical presentation of recurrent erythema multiforme, which does not respond to typical EM treatment, should raise a suspicion for RS and prompt screening for autoimmune markers and lupus erythematosus.
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