Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . On the lateral images there is a small region of consolidation in the anterior aspect of the lower lobes . Lateral images also demonstrate a possible nodule above the aortic arch . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
1 . Small region of consolidation in the anterior aspect of the lower lobes . 2 . Possible nodule above the aortic arch . Old studies would be helpful for comparison , but if these are unavailable CT is recommended for further evaluation .