Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Subtle opacity projecting over the right lung base is not confirmed on the lateral projection . Therefore , this may represent overlying breast tissue though pneumonia difficult to entirely exclude . Otherwise lungs are clear . No effusion or pneumothorax . Cardiomediastinal silhouette is normal . Bony structures appear intact .
    OUTPUT:
    
Subtle opacity overlying the right lung base on frontal view could represent superimposed breast tissue though difficult to exclude underlying pneumonia . Please correlate clinically .