Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . Clips project over the left lung base and reside in the left breast soft tissues , unchanged . The lungs are clear without focal consolidation , effusion , or pneumothorax . The heart and mediastinal contours appear normal . The imaged osseous structures are intact . No free air below the right hemidiaphragm . Asymmetric breast tissue is incidentally noted .
    OUTPUT:
    
Postsurgical changes in the left breast . No acute intrathoracic process .