Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low and there is crowding at the bases . Even allowing for this there is increased opacity at the left base that likely represents a developing infiltrate there is pulmonary vascular redistribution and mild cardiomegaly the ET tube tip is 1 .5 cm above the carina . NG tube tip is off the film , at least in the stomach
    OUTPUT:
    
1 . CHF , slightly improved compared to prior 2 . Focal area of concern of the left lower lobe could represent a developing infiltrate