Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable semi-erect chest radiograph was obtained . The left hemithorax is nearly completely opacified . There is a small amount of residual aerated left upper lobe . In addition there is a right lower lobe airspace opacity and small to moderate right effusion . The heart and mediastinum can not be assessed . Aortic calcifications are again seen . A right - sided PICC line has been pulled back since ___ . The tip is now at the subclavian SVC junction . A tracheostomy tube is in unchanged position . There are cholecystectomy clips .
    OUTPUT:
    
1 . Almost complete collapse of the left lung . 2 . Bibasilar opacities may represent infection . 3 . Right , and possibly left pleural effusions .