Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . The lungs are well inflated and clear . Curvilinear horizontal density projects over the heart , likely represents some plate - like atelectasis . No consolidation , effusion , or pneumothorax . The heart and mediastinal contours are normal . Minimal aortic arch calcifications are noted .
    OUTPUT:
    
Minimal basilar atelectasis . No evidence of multifocal aspiration pneumonitis , as reported previously . The prior exam in question is not available for review .