Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Mild cardiomegaly is unchanged . Mediastinal contours are stable . Previously seen left lower lobe opacity has resolved . Small bibasilar opacities are most consistent with atelectasis or scarring . No new focal consolidation , pleural effusion , or pneumothorax . Old right lateral rib fracture again seen .
    OUTPUT:
    
No acute cardiopulmonary process . Small bibasilar atelectasis or scarring . Mild cardiomegaly .