Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . No prior . On the frontal exam , the lungs are clear . However , on the lateral , there is increased opacity projecting over the spine . Elsewhere , the lungs are clear and the costophrenic angles are sharp . The cardiomediastinal silhouette is within normal limits . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Subtle increased opacity in the lateral view projecting over the spine , potentially atelectasis given lack of findings on the frontal view , however repeat exam with better inspiratory effort can be performed to further evaluate .