Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette remains enlarged . The mediastinum is stable . Slight tortuosity of a calcified aorta . No definite focal consolidation is seen on the current examination . No large pleural effusion or evidence of pneumothorax . Chain sutures are again seen overlying the left upper hemithorax . No overt pulmonary edema . No evidence of free air is seen beneath the diaphragms .
    OUTPUT:
    
Persistent cardiomegaly without other acute process seen .