Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . There is patchy left lower lobe opacity which may represent atelectasis . There is no pleural effusion , or pneumothorax . The cardiomediastinal and hilar contours are normal . The previously seen nodular opacities at the lung apices bilaterally , right greater than left , are not well seen . There are aortic knob calcifications . There are healing right sided rib fractures .
    OUTPUT:
    
1 . Patchy left lower lobe opacity may represent atelectasis . 2 . Previously seen nodular opacities at the lung apices bilaterally , right greater than left , are not well seen . Recommend follow up CT in ___ as previously recommended .