A 7-year-old Turkish boy was presented to the hospital with complaints of fever, chest pain, and vomiting. On arrival at the hospital, the boy had a respiratory rate of less than 55 pulse/minute. Auscultation of his lungs revealed diminished breath sounds of the lower lobe of the left lung. Chest X-ray and chest ultrasonography showed lower lobar consolidation with pleural effusion. With increasing pleural effusion (Cover Image), thoracentesis was performed.

With the insertion of the chest tube, 130 ml of pus was drained. Despite the use of broad spectrum antibiotics, high fever persisted for 15 days. Nonpurulent conjunctivitis was seen in both eyes. Perianal peeling and desquamation of hand, fingers, and toes were also seen. Laboratory findings Parameter Laboratory values Hemoglobin 10.2 g/dL White blood cells 14,000/µL Platelets 736,000/µL C-reactive protein 4.26 mg/dL Erythrocyte…