Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated and clear . Blunting of the bilateral costophrenic angles is likely secondary to basilar atelectasis . The heart and mediastinal contours are normal . No focal consolidation , nodule , fusion , or pneumothorax is present . There is no pneumoperitoneum .
    OUTPUT:
    
Bibasilar atelectasis . No acute cardiopulmonary process .