Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Persistent widening of right paratracheal stripe , consistent with known lymph node enlargement in this region on prior CT . Additional calcified lymph nodes are seen in the subcarinal region and and are seen to better detail on the recent CT scan . Heart size is normal . Within the lungs , note is again made of a discrete nodule in the right upper lobe measuring approximately 2 cm . Lungs are otherwise clear , and there are no pleural effusions or pneumothoraces .
    OUTPUT:
    
Mediastinal lymphadenopathy and right upper lobe lung nodule , which have been more fully characterized by recent CT . No evidence of pneumothorax .