Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . The cardiomediastinal silhouette is unremarkable . The central pulmonary vasculature appears mildly engorged . There is left basilar atelectasis . Minimal opacity is seen in the right infrahilar region and at the left base . No definite correlate is seen on the lateral view , however , in the appropriate clinical context , this may represent focal pneumonia . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Right infrahilar and left basilar opacity , in the appropriate clinical context , may represent pneumonia .