Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Support Devices : The endotracheal tube terminates 5 cm above the carina . The orogastric tube terminates in the neo esophagus , unchanged in position from prior study . A chest wall port catheter terminates in the SVC . A right chest tube is unchaged . The left lung base is excluded from the view . Bilateral heterogeneous opacities , predominately in the lower lobes is unchanged from ___ but improved from several prior studies . There is no pneumothorax . Pleural effusions , if present , are small .
    OUTPUT:
    
Support devices as above . Bilateral airspace opacities , predominantly in the lower lobes , are unchanged from the most recent prior but improved from several earlier studies .