Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral radiographs of the chest demonstrate new elevation of the left hemidiaphragm and minimal bibasilar atelectasis . The lungs are otherwise clear and heart size is normal . There is a left upper lobe paraaortic mass which is stable in size . The lungs are otherwise clear . There is no pneumothorax .
    OUTPUT:
    
1 . New elevation of the left hemidiaphragm raises concern for phrenic nerve palsy . Fluoroscopic or ultrasound evaluation recommended . 2 . No evidence of pneumonia or congestive heart failure .