Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No fracture is identified . There is an asymmetrical focal opacity overlying the right seventh anterior rib on the PA view which is not seen on lateral view . It is uncertain whether this represents superimposition of soft tissue structures or a discrete lung parenchymal process such as focal contusion . There is no pneumothorax . The cardiomediastinal silhouette is normal . There is no free air below the diaphragm .
    OUTPUT:
    
1 . No fracture is identified . 2 . Nonspecific opacity overlying the right seventh anterior rib , possibly localized contusion given history of fall . Short - term followup is recommended to ensure resolution .