Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates a normal cardiac size . In the right lung base is increased opacity projecting over the inferior right heart border . An additional opacity projects over the left lung base . These could represent atelectasis , but infection can not be excluded in the right clinical setting . There is no pleural effusion or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
Increased opacity projecting over the inferior right heart border and left lung base . This could represent atelectasis , but infection can not be excluded in the right clinical setting .