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Case reports in rheumatology v.2018, 2018년, pp.1 - 4  

A Rare but Fascinating Disorder: Case Collection of Patients with Schnitzler Syndrome

Bashir, Maaman (Division of Rheumatology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA ) ; Bettendorf, Brittany (Division of Rheumatology, Department of Medicine, University of Iowa, Iowa City, IA 52242, USA ) ; Hariman, Richard (Division of Rheumatology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA ) ;
  • 초록  

    Background . Schnitzler syndrome is a rare disorder characterized by a chronic urticarial rash and monoclonal gammopathy (IgM in more than 90% of the cases). It is difficult to distinguish from other neutrophilic urticarial dermatoses, and diagnosis is based on the Strasbourg criteria. Interleukin-1 is considered the key mediator, and interleukin-1 inhibitors are considered first line treatment. Here, we present two cases of Schnitzler syndrome, both successfully treated with anakinra. Objectives . To increase awareness regarding clinical presentation, diagnosis, and treatment of this rare disorder. Cases . We describe the clinical features and disease course of two patients with Schnitzler syndrome, diagnosed using the Strasbourg criteria. Both were treated with anakinra with remarkable response to therapy. Conclusion . Schnitzler syndrome is a rare and underdiagnosed disorder. High suspicion should be maintained in patients with chronic urticaria-like dermatoses, intermittent fevers, and arthralgias. A serum protein electrophoresis and immunofixation should be performed in these patients. The diagnosis is important to recognize as Schnitzler syndrome is associated with malignancy. A lymphoproliferative disorder develops in about 20% of patients at an average of 7.6 years after onset of symptoms. Thus, patients warrant long-term follow-up. IL-1 inhibitors are extremely effective in relieving symptoms and are considered first line therapy.


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