We report three patients who initially showed prolonged fever, lung parenchymal consolidation and laboratory findings of pneumonia, and secondarily presented a clinical picture ascribed to Kawasaki syndrome. Two of these children developed coronary artery dilations, which regressed upon echocardiography after 12 months. In the case of infants showing broncho-pulmonary abnormalities with slow resolution, active inflammatory parameters and high fever persistence, pediatricians should consider atypical Kawasaki syndrome as a possible alternative diagnosis.