Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are unchanged compared to the prior study . A left - sided subclavian catheter terminates in the proximal SVC . A right internal jugular Port - A - Cath terminates in the mid SVC . The cardiomediastinal contour is normal . There has been progression of the bilateral basal airspace opacities . This may reflect pulmonary edema versus is infection . Given the normal heart size , the latter is considered more likely . No pleural effusion seen . An endotracheal tube is in - situ , the tip is 4 .7 cm above the carina . No pneumothorax seen .
    OUTPUT:
    
Increase in the bibasilar airspace opacities concerning for infection versus pulmonary edema .