Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are markedly hyperinflated . There is marked thoracic kyphosis with a stable compression deformity in the mid T - spine as seen on prior CT . There is no convincing sign of aspiration , pneumonia , effusion , or pneumothorax . The heart is unchanged in size . The mediastinal contour is unremarkable . Bony structures are intact .
    OUTPUT:
    
COPD with no evidence of superimposed pneumonia or aspiration .