Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube tip lies approximately 5 .4 cm above the carina . There are low inspiratory volumes , with mild prominence the cardiomediastinal silhouette . There is increased retrocardiac density , consistent with left lower lobe collapse and / or consolidation . There is minimal atelectasis at the right base medially . No gross effusion , though small left effusion would be difficult to exclude . Mild vascular plethora , without other evidence of CHF . This appearance is also likely accentuated by low lung volumes . No pneumothorax is detected . Skin ___ noted .
    OUTPUT:
    
1 . Low lung volumes with left lower lobe collapse and / or consolidation and patchy opacity at the right lung base . 2 . Mild vascular plethora . 3 . Small left pleural or fusion can not be excluded