Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiograph demonstrate clear lungs bilaterally . Lungs are mildly hyperinflated . There is no pleural effusion , pneumothorax , or pulmonary edema . There is no air under the right hemidiaphragm . A biliary stent is present and projects over the right upper quadrant .
    OUTPUT:
    
No air under the right hemidiaphragm . No acute intrathoracic abnormality .