Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is mild elevation of the left hemidiaphragm with linear opacities at the left lung base laterally suggesting scar , unchanged . The lungs are otherwise clear without evidence of consolidation or effusion . The cardiomediastinal silhouette is within normal limits . Old healed mid right clavicular fracture is again noted . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .