Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette and well - aerated lungs . Focally increased patchy opacity in the right lower lung , not seen on lateral view , may reflect developing infection . Remainder the lungs are clear . No pleural effusion or pneumothorax is identified . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Focally increased patchy opacity in the right lower lung , which may reflect developing infection .