Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left heart border is not well - defined , perhaps due to an epicardial fat pad . Lung volumes are also low , causing bronchovascular crowding and accentuation of the heart size . No definite focal consolidation identified . No pleural effusion or pneumothorax .
    OUTPUT:
    
1 . No definite focal consolidation identified . Low lung volumes cause bronchovascular crowding and accentuation of the heart size . 2 . No evidence of pneumothorax .