Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no significant change since the prior radiograph . No evidence of focal consolidation , pleural effusion , or pneumothorax . There is no large mass . Opacity at the left base has been present since ___ and is most likely a fat pad . The cardiomediastinal silhouette is unchanged and mildly enlarged . Osseous structures are notable for mild wedging of a mid thoracic vertebra , unchanged since ___ .
    OUTPUT:
    
No acute cardiopulmonary process .