Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart is of normal size with normal cardiomediastinal contours . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax . No radiopaque foreign body . Mild thoracolumbar degenerative changes are similar to prior .
    OUTPUT:
    
Unremarkable chest radiographs .