Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are relatively well expanded and clear . The cardiomediastinal silhouette is stable in appearance compared to the prior study , with mild cardiomegaly and intact sternotomy wires . There is no large pleural effusion , pneumothorax , or focal airspace consolidation . Left PICC is no longer seen .
    OUTPUT:
    
No acute cardiopulmonary process .