Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate normal heart size . The cardiomediastinal silhouette and hilar contours are normal . There are patchy opacities in the right lower lobe increased from the prior study of ___ . No pleural effusion or pneumothorax . No displaced rib fracture identified .
    OUTPUT:
    
Patchy opacities in the right lower lobe concerning for pneumonia ; although , disease recurrance can not be entirely excluded . Recommend followup radiograph after treatment to ensure resolution .