Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is top normal in size / minimally enlarged on this AP projection . No pneumothorax is identified status post bronchoscopy . Subtle opacity involving the base of the right lung could represent atelectasis , in the setting of recent procedure . The aorta is unfolded . No pleural effusion is identified .
    OUTPUT:
    
Subtle opacities involving the right lung base in the area of recent bronchoscopy may be due to atelectasis . No pneumothorax .