Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is stable mild enlargement of the cardiac silhouette . The mediastinal silhouette is within normal limits . The trachea is midline . Aortic arch calcifications are noted . Linear opacities in the left lung likely reflect post treatment lung parenchymal changes , as seen on prior exams . Linear opacities within the right lower lung likely reflect minimal atelectasis . There is no focal lung consolidation or pulmonary vascular congestion . There is no pleural effusion . There is no pneumothorax . There is mild anterior wedging of a lower thoracic vertebral body , grossly unchanged from prior CT .
    OUTPUT:
    
No acute cardiopulmonary process .