Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of the right internal jugular catheter . A right - sided PICC line is in - situ , the tip is positioned in the distal SVC . A nasogastric tube is in - situ , the tip is not visualized but lies the left hemidiaphragm . There is silhouetting of the bilateral hemidiaphragms with increased air bronchograms and airspace opacity projecting in the left lung base when compared to the prior study . No pneumothorax seen .
    OUTPUT:
    
Progression of the bilateral predominately basal airspace opacities , more severe on the left than the right .