Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous exam from ___ . The lungs are clear of consolidation or large effusion . There is elevation of the left hemidiaphragm as on prior with less clear delineation of posterior costophrenic angle , potentially related to a small effusion versus atelectasis / scarring . Cardiomediastinal silhouette is within normal limits . Osseous structures again notable for post - thoracotomy changes on the left . Multiple surgical clips are seen in the left upper abdomen .
    OUTPUT:
    
No evidence of confluent consolidation . New mild blunting of the left posterior costophrenic angle , potentially due to scarring / atelectasis versus trace effusion .