Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged . Mild prominence of the pulmonary vascular markings is unchanged , without overt pulmonary edema . New ill - defined nodular opacities are seen within the right lung , the largest measuring 18 mm and located within the right lung base . Minimal patchy opacities in the lung bases likely reflect atelectasis . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is present . An electronic device is noted within the left mid anterior wall .
    OUTPUT:
    
Mild bibasilar atelectasis . Multiple nodular opacities within the right lung , new from the previous study .