Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased opacification at the bilateral lung bases could be due to overlying anterior soft tissue . On the lateral view there is faint opacification in the retrocardiac region which may represent pneumonia in correct clinical setting . There is no pleural effusion or pneumothorax . Cardiomediastinal and hilar silhouettes are normal size .
    OUTPUT:
    
Faint opacification in the retrocardiac region may represent pneumonia in correct clinical setting .