Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the radiograph from the prior day , there is very subtle , increased radiodensity at the bilateral lung bases . No new large pleural effusions or pneumothorax . The cardiomediastinal and hilar silhouettes are stable .
    OUTPUT:
    
New , subtle increased radiodensities at the bilateral lung bases . Given the clinical situation of the patient , CT of the chest is recommended for further evaluation .