Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . The patient is rotated to the left . Single - lead right - sided pacemaker is again seen with lead extending to the expected position of the right ventricle . The patient is status post median sternotomy and CABG . There is stable blunting of the left costophrenic angle which may be due to trace pleural effusion or pleural thickening . No focal consolidation or pneumothorax is seen . The cardiac silhouette remains mildly enlarged . The aorta is calcified . There are degenerative changes at the right shoulder joint . Amorphous linear calcification is again seen in the right shoulder joint which may indicate underlying chondrocalcinosis .
    OUTPUT:
    
Stable blunting of the left costophrenic angle may be due to trace pleural effusion versus pleural thickening . No significant interval change .