Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post CABG with stable appearance of median sternotomy wires . Resolution of small right pleural effusion . No effusion on the left . There is no focal consolidation or pneumothorax . There is no central vascular congestion or overt pulmonary edema . The ascending aorta is mildly ectatic and there is mild tortuosity and unfolding of the thoracic aorta , better assessed on prior chest CT from ___ , similar to prior study . Mild cardiomegaly is stable .
    OUTPUT:
    
1 . No acute intrathoracic process . 2 . Unchanged tortuosity of the thoracic aorta .