Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . Left - sided pacemaker / defibrillator is unchanged in position . Median sternotomy wires and mediastinal clips are again seen . There is no focal consolidation , pleural effusion or pneumothorax . The heart has been mildly enlarged and unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . Unchanged mild cardiomegaly .