Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal silhouette is within normal limits . On the lateral radiograph , there is slightly increased opacification over the lower spine which may represent developing pneumonia in the appropriate clinical context . There is no pleural effusion or pneumothorax . The bones and the upper abdomen are grossly unremarkable .
    OUTPUT:
    
Increased opacification projecting over the lower spine on the lateral radiograph may represent a developing pneumonia or atelectasis in the appropriate clinical context .