Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased AP diameter of the chest is similar to priors , and may suggest underlying emphysema . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Coronary stent is unchanged in position . .
    OUTPUT:
    
No acute cardiopulmonary process .