Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . New patchy opacities are seen within the left lower lobe with a trace left pleural effusion . Small right pleural effusion is also noted . There is no pneumothorax . No acute osseous abnormalities demonstrated .
    OUTPUT:
    
Patchy opacity in the left lower lobe is concerning for pneumonia . Trace bilateral pleural effusions .