[Acute abdomen at onset of incomplete and atypical Kawasaki disease: case report].

Kawasaki disease is one of the most common systemic vasculitis in children and the most common cause of acquired heart disease in developed countries. Diagnosis relies on clinical findings and there is no specific test. Diagnosis and treatment decisions are very difficult in incomplete or atypical cases and questions inevitably arise during the care of these patients. In children with atypical or incomplete disease, the option in favor of therapy with gamma globulin seems currently to be the most suitable one. A patient with acute abdomen is presented as the initial symptom of Kawasaki disease.