Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no focal consolidation , pleural effusion , or pulmonary edema . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . The known mid left clavicular fracture is not well seen on this exam . There is asymmetrical biapical scarring , better seen on the CT exam .
    OUTPUT:
    
No acute cardiopulmonary process .