Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes cause bronchovascular crowding . Pulmonary vascular congestion is mild . There is no focal consolidation , pleural effusion or pneumothorax . The cardiomediastinal silhouette , including top - normal heart size , is stable .
    OUTPUT:
    
1 . Low lung volumes . 2 . Mild pulmonary vascular congestion and top - normal heart size . 3 . No focal consolidation .