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[Kawasaki syndrome with acute gallbladder hydrops--case report and review of the literature].

We describe a 2 3/4-year-old boy with Kawasaki disease associated with the rare complication of acute hydrops of the gallbladder. Because of the severe abdominal symptoms cholecystectomy was performed. A review of the literature shows that about half of the patients had been operated upon. Therefore conservative treatment may provide complete improvement. Ultrasonography is not only very helpful in the diagnosis but also in follow-up.