Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs were obtained . The lungs are hyperinflated . Diaphragm is flattened , consistent with COPD . A calcified left upper lobe granuloma is stable . Atelectasis is present at the left base . Midline sternotomy wires are intact . The fourth sternotomy wire from the top does extend anteriorly . Radiography is not the optimal modality to assess for fluid collections or infection . No pneumothorax or effusion is present .
    OUTPUT:
    
1 . Left basilar opacity suggestive of atelectasis . 2 . Radiography is not the ideal modality to assess for sternum fluid collections or infection . Nuclear medicine bone scintigraphy would be a better modality to assess for osteomyelitis if this is a concern .