Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear besides mild patchy left basilar opacity as on prior . The cardiomediastinal silhouette is stable . Atherosclerotic calcifications again noted at the aortic arch . No acute osseous abnormalities pain
    OUTPUT:
    
Persistent mild patchy left basilar opacity potentially atelectasis . Otherwise no acute cardiopulmonary process .