Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are stable and unremarkable , as are the hilar contours . As before , left breast is smaller than the right in keeping with the patient 's history of prior lumpectomy . Possible mild left apical scarring is seen , unchanged .
    OUTPUT:
    
No acute cardiopulmonary process . No significant interval change .