A Chinese case series of Schnitzler syndrome and complete remission in one tocilizumab-treated patient
Abstract
Schnitzler syndrome (SchS) is a rare acquired systemic autoinflammatory disease. The major clinical features of SchS are urticarial rash and monoclonal gammopathy, accompanied by fever, joint pain, and lymphadenopathy. There were few reports about SchS in Chinese population. Herein, we describe two patients with SchS in China and conducted a systematic literature review about SchS. Two Chinese Han patients were diagnosed as SchS in our department from 2017 to 2019. Their phenotype and genotype were carefully documented and studied. We also conducted a systematic literature review about SchS. There was one man (66 years old) and one woman (49 years old). Recurrent fever and urticarial rash occurred in both of them during the febrile attacks and normalized in asymptomatic intervals. Other manifestations included arthralgia, lymphadenopathy, and hearing loss. Hepatic cirrhosis and epilepsy were seen in the male patient. None of them had bone pain or family histories. Serum monoclonal IgM gammopathy was found in both patients. MyD88 gene mutation L258P was identified in the female patient. They were treated with tocilizumab and tripterygium wilfordii Hook F (TwHF) respectively, and both showed good response. The rarity and diversit...Continue Reading
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