Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Biventricular pacemaker in situ with the lead tips seen in the right atrium , right ventricle and coronary sinus / left ventricle . Nasogastric tube in situ with the tip seen in the mid stomach . No pneumothorax . The previously noted airspace consolidation in the left upper lobe shows interval improvement . Pleural plaques again noted . Mild coarsening of the bronchovascular markings . Mild right pleural thickening / effusion . Cardiomegaly unchanged . No overt pulmonary edema . Spondylotic changes of the thoracic spine .
    OUTPUT:
    
NG tube in situ with the tip at the mid stomach . Interval improvement in the left upper lobe airspace consolidation .