Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET and NG tube have been removed . Right - sided PICC line overlies proximal / mid SVC . No pneumothorax is detected . There are low inspiratory volumes . Cardiomediastinal silhouette is similar to prior . There is patchy opacity at the left lung base and increased retrocardiac density , slightly more pronounced . Some vascular crowding is present at the right lung base . Small effusions would be difficult to exclude .
    OUTPUT:
    
Low inspiratory volumes . Slight increase in opacities at the left lung base .