Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours appear within normal limits . There is no pleural effusion or pneumothorax . Streaky opacity in the right costophrenic sulcus is most consistent with minor atelectasis , similar to prior findings , and a nipple shadow is visualized projecting over the right lower lung , as before . The lung fields appear otherwise clear aside from unchanged suspected minor left lower lobe atelectasis . There is no pleural effusion or pneumothorax . The thoracic spine again curves mildly toward the left at the thoracolumbar junction .
    OUTPUT:
    
No evidence of acute cardiopulmonary disease .