Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate no evidence of pneumothorax . A 1 - cm right upper lobe nodule projects over the right fifth intercostal space . The lung volumes are low , accentuating bronchovascular markings . The heart is normal in size . The mediastinal and hilar contours are within normal limits . The thoracic aorta is moderately unfolded .
    OUTPUT:
    
No post - biopsy pneumothorax .