Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The lung volumes are relatively low . The cardiac silhouette is mildly enlarged . The aorta is somewhat tortuous . Low lung volumes accentuate the bronchovascular markings . No definite focal consolidation is seen ; however , it is difficult to exclude a tiny amount of vascular congestion . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
Low lung volumes accentuate the bronchovascular markings and the cardiomediastinal silhouette ; however , the cardiac silhouette appears top normal to mildly enlarged . No definite focal consolidation .