Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Sternotomy wires are intact . Lungs are fully expanded . Mild left lower lobe plate - like atelectasis with no additional focal opacity , pneumothorax , pleural effusion or pulmonary edema . Heart is top normal in size with normal mediastinal contour and hila . No bony abnormality .
    OUTPUT:
    
1 . Mild left lower lobe atelectasis . 2 . No radiographic evidence of tuberculosis or pneumonia .