Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Midline sternotomy wires are again noted . Lungs appear hyperinflated and clear . No signs of pneumonia or edema . No effusion or pneumothorax . The aorta is markedly unfolded and calcified . There are several compression deformities in the mid thoracic spine appearing grossly stable from prior chest radiograph .
    OUTPUT:
    
Hyperinflated lungs without superimposed acute process .