Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild bibasilar atelectasis ; otherwise , the lungs are clear with no evidence of consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette is normal . No acute fractures are identified . No free air is noted under the hemidiaphragms . A tube is visualized overlying the sternum in the lateral projection , is likely external to the patient , but clinical correlation is recommended . Nodular opacity over left lung base is likely nipple as this area of lung is clear on CT performed the same day . Calcific densities are again noted in the region of the pancreatic tail and consistent with patient 's history of chronic pancreatitis .
    OUTPUT:
    
No acute cardiopulmonary process .