Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ETT in standard position . Right internal jugular venous catheter tip projects over the approximate region of the upper right atrium , unchanged . Enteric tube is in side port projected expected region of the stomach , also unchanged . Tiny round radiopaque material projecting of the left upper lobe bronchus is unchanged . Lung volumes remain low . Mild pulmonary vascular congestion is improved slightly in interim . Edema is moderate . Small pleural effusion and atelectasis on the left persists . Moderate cardiomegaly is overall unchanged . No right pleural effusion . No pneumothorax .
    OUTPUT:
    
Low lung volumes with perhaps slight improvement in moderate edema . Persistent small left pleural effusion .