Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Left - sided AICD is stable in position . The cardiac silhouette remains mild to moderately enlarged . The aorta and mediastinal contours are unremarkable . The patient is status post median sternotomy and CABG . Subtle linear left basilar opacities are improved since the prior study and likely represent chronic changes . No new focal consolidation is seen . There is no pleural effusion or pneumothorax . The lungs are relatively hyperinflated with flattening of the diaphragms , suggesting chronic obstructive pulmonary disease .
    OUTPUT:
    
Cardiomegaly . No acute cardiopulmonary process .