Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously seen pulmonary edema has resolved . The lungs are clear without consolidation , effusion , or edema . Increased opacity at the left costophrenic angle is likely due to pleural thickening . Mild cardiac enlargement is noted as well as tortuosity of the thoracic aorta with atherosclerotic calcifications at the arch . Posterior left seventh rib fracture is chronic . Posterior fixation hardware partially visualized in the lumbar spine .
    OUTPUT:
    
No acute cardiopulmonary process .