Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Streaky left basilar opacity is likely atelectasis versus scar . The lungs are otherwise clear without consolidation worrisome for pneumonia . There is no effusion or edema . Mild cardiomegaly is again noted . Dense atherosclerotic calcifications at the aortic arch . Lower thoracic vertebroplasty changes are again noted .
    OUTPUT:
    
No definite acute cardiopulmonary process .