A seven-month-old infant with kawasaki disease complicated with knee arthritis

Abstract

We observed a case of Kawasaki disease complicated with arthritis during the subacute phase. Differentiating arthritis in Kawasaki disease from systemic juvenile idiopathic arthritis （sJIA） is challenging. The cytokine value was determined by cytokine profiling. The laboratory data did not show characteristics of sJIA, and the symptoms improved without medications. Measuring the cytokine and serum ferritin levels is suggested to help differentiate Kawasaki disease from sJIA.