Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , leading to crowding of the bronchovascular structures . The bilateral costophrenic angles are blunted laterally , suggesting atelectasis as the posterior costophrenic angels are sharp . Redemonstrated is mild scarring at the right lung base . There is no evidence of focal consolidation , pneumothorax , or frank pulmonary edema . Again seen is a 1 cm left upper lung nodule , less conspicuous as compared to the prior exam . The previously identified 1 cm right lower lung pulmonary nodule is not well visualized on this exam . The patient is status post median sternotomy and CABG , with sternotomy wires seen intact and well aligned . The cardiomediastinal silhouette is stable . No acute bony abnormality is detected .
    OUTPUT:
    
1 . No radiographic evidence for acute cardiopulmonary process . 2 . Redemonstrated 1 cm left upper lobe pulmonary nodule . Recommended dedicated chest CT for further evaluation as previously mentioned .