Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a mildly enlarged heart and improved lung volumes compared to prior chest radiograph . The convex lateral contour of the right mediastinal margin reflects the dilated ascending aorta . No focal consolidation to suggest pneumonia . There is a small left pleural effusion . No pneumothorax is seen . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . No focal consolidation to suggest pneumonia . 2 . Small left pleural effusion .