Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a focal opacity in the right middle lobe compatible with pneumonia . The left lung is grossly clear . The cardiomediastinal silhouette and hilar contours are stable . There is no pleural effusion or pneumothorax . The diaphragms are slightly flattened and there may be background hyperinflation .
    OUTPUT:
    
Right middle lobe pneumonia .