Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Linear right infrahilar opacities likely represent atelectasis , however this may represent aspiration in the appropriate clinical setting . The cardiac , hilar and mediastinal contours are normal . No pleural abnormality is seen .
    OUTPUT:
    
Right infrahilar opacities likely represent atelectasis , however aspiration or pneumonia are not excluded .