Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . The lungs are clear without focal consolidation , effusion or pneumothorax . The heart and mediastinal contours are normal . There is no mediastinal widening . The imaged osseous structures are intact . Degenerative changes are moderate in the lower T - spine .
    OUTPUT:
    
No acute findings in the chest . Normal mediastinal contour .