A 73-year-old man was admitted with signs of dyspnea, pleuritic chest pain, fever, leukocytosis, high sedimentation rate, increase on C-reactive protein level, pleural effusion 2 weeks after coronary artery bypass surgery. According to the torax CT and echocardiographic findings, Dressler syndrome diagnosed by the exclusion of pulmonary embolism, pnemonia, and congestive heart failure. Nonsteroid antiinflamatory drugs administered to the patient but there was no improvement in symptoms, so parenteral steroid 30 mg/day added to the therapy. During follow up period, an improvement in symptoms and laboratory findings was seen, and the patient discharged by reducing the steroid doses. ©2008, Firat University, Medical Faculty.