Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable upright frontal chest radiograph demonstrates intact sternal wires and unchanged moderate cardiomegaly . The lungs are hyperinflated , without focal lesion or appreciable pneumothorax . A small left pleural effusion is unchanged . The visualized upper abdomen is unremarkable , without evidence of intraperitoneal free air .
    OUTPUT:
    
1 . No evidence of intraperitoneal free air . 2 . Unchanged small left pleural effusion .