Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . A left - sided pacemaker is in appropriate position . Sternotomy wires again seen . An aortic valve replacement is again noted . Faint haziness over the lower lung fields bilaterally , likely from patient 's body habitus . This is unchanged . There is no new focal consolidation , pleural effusion or pneumothorax . Cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
No acute cardiopulmonary process , unchanged compared to ___ .