PT - JOURNAL ARTICLE AU - Natoli, Valentina AU - Rosina, Silvia AU - Ravelli, Angelo TI - Is macrophage activation syndrome in Kawasaki disease underrecognized? AID - 10.3899/jrheum.200361 DP - 2020 Jun 01 TA - The Journal of Rheumatology PG - jrheum.200361 4099 - http://www.jrheum.org/content/early/2020/05/22/jrheum.200361.short 4100 - http://www.jrheum.org/content/early/2020/05/22/jrheum.200361.full AB - Kawasaki disease (KD) is an acute vasculitis of unknown etiology that predominantly affects children < 5 years of age. It is now the leading cause of acquired heart disease in the pediatric age in developed countries1.