Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Extensive right lower lobe opacification , less so in the left lower lobe , corresponds with findings on the recent CT . Left lower lobe opacification appears increased since the prior chest CT . No evidence of pneumothorax or hemothorax . The heart borders are obscured by the opacifications .
    OUTPUT:
    
1 . No evidence of pneumothorax or hemothorax . 2 . If there is no transbronchial biopsy on the left , increased opacification in the left lung could be a progression of the process identified on the recent chest CT . If the mass at the lingula was biopsied , then the left - sided opacification may represent resulting hemorrhage .