Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy left base retrocardiac opacity is worrisome for pneumonia . The right lung is clear . The lungs are overall hyperinflated , which may be due to chronic obstructive pulmonary disease . No pulmonary edema is seen . The cardiac and mediastinal silhouettes are stable and unremarkable . The hilar contours are stable .
    OUTPUT:
    
Findings again worrisome for left lower lobe pneumonia .