Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a dual - lead pacemaker / ICD device terminating in the right atrium and ventricle . The heart is mild to moderately enlarged . The mediastinal and hilar contours appear unchanged . There is a mild - to - moderate coarse interstitial abnormality which is very similar and suggests a baseline finding , perhaps due to chronic vascular congestion or airway inflammation , but without definite evidence for a superimposed process . There is a vague patchy opacity in the left costophrenic sulcus suggestive of minor atelectasis . There is no definite pleural effusion or pneumothorax .
    OUTPUT:
    
Stable appearance of the chest .