Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable radiograph of the chest demonstrates elevation of the right hemidiaphragm compared to the left , and compared to the prior study from ___ . There is mild right basilar atelectasis with no evidence of right lower lobe collapse . The remainder of the right lung and the left lung are clear . Cardiac size is mildly enlarged , likely due to portable technique . Hilar and mediastinal contours are otherwise unremarkable . No pleural effusion or pneumothorax .
    OUTPUT:
    
Clear lungs with elevation of the right hemidiaphragm , which is new since the prior radiograph from ___ , and may represent phrenic nerve injury , or an intra-abdominal process resulting in elevation of the hemidiaphragm .