Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . The lungs are well - inflated and grossly clear . Patient is status post median sternotomy . There is no focal consolidation , effusion , or pneumothorax . Mild basilar atelectasis is seen on the left . The cardiomediastinal silhouette is normal . Imaged osseous structures are intact .
    OUTPUT:
    
No acute intrathoracic process .