Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior chest radiograph from ___ , substantial bilateral pleural effusions with lower lobe consolidations persist . There are no findings suggestive of pneumonia in the ventilated lungs . Tracheostomy tube is again noted . A left PICC line remains in unchanged position .
    OUTPUT:
    
Substantial bilateral pleural effusions and lower lobe consolidations , underlying pneumonia however can not be excluded .