Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Elevation of the right hemidiaphragm is unchanged from the CT examination of ___ . No focal opacity to suggest pneumonia is seen . No pneumothorax or significant pleural effusion is present . No overt pulmonary edema . The heart size is normal .
    OUTPUT:
    
No evidence of acute intrathoracic process .