Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is biapical partially calcified scarring with superior retraction of the hila particularly on the right . The lungs are clear of consolidation , effusion , or edema . Opacity at the left posterior costophrenic angle , may be atelectasis or Bochdalek 's hernia . The cardiomediastinal silhouette is within normal limits . Old healed left posterior rib fractures are noted . No acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary process .