Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Blunting of the left costophrenic angle is unchanged from multiple prior studies likely representing pleural and parenchymal scarring . There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . A left pectoral dual - chamber pacemaker and its leads project in unchanged location . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
No acute cardiopulmonary process .