Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine portable radiograph demonstrates minimally improved aeration of the right upper lobe , though there appears to be increased opacity in the left lower lobe , possibly positional though can not exclude worsening infectious process . Stable evidence of volume loss on the left with left hemidiaphragm elevation . No pleural effusion or pneumothorax evident . The cardiomediastinal and hilar borders are unremarkable . Endotracheal tube is at the level of the carina . There is a right - sided central venous catheter with tip in the upper right atrium .
    OUTPUT:
    
1 . Improved aeration of right upper lobe but with increased opacification and left lower lobe may be positional though can not exclude increased atelectasis versus infectious process , possibly aspiration related . 2 . ET tube at the level of the carina . Should be withdrawn 2cm to be at level of clavicles .