Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Leftward curvature of the mid thoracic spine is moderate . Tubing external to the patient projecting over the right apex limits detailed evaluation of the parenchyma in this region . Stable appearance of opacity in the left apex with associated volume loss , reflecting radiation fibrosis . Mild right apical pleural thickening is unchanged . Subtle increased opacity in the left lower hemithorax with increasing indistinctness of the left half border compared to the prior 2 exams could indicate developing infection in the appropriate clinical situation or atelectasis . Increased interstitial markings is nonspecific and could indicate underlying interstitial lung disease . No frank pulmonary edema , pleural effusion , or pneumothorax . Cardiomediastinal silhouette is also overall unchanged with persistent mild cardiomegaly . Dilation of the pulmonary arteries is better appreciated on the cross-sectional imaging previously . Calcification of the aortic knob is moderate to severe , unchanged . Surgical clips projecting over the left axilla and right upper quadrant are unchanged . The patient has had prior left mastectomy . There may be calcification of the anterior longitudinal ligament and mild degenerative changes in the visualized thoracic spine .
    OUTPUT:
    
1 . Increased left hemithorax opacity on the frontal view over the last 2 exams could be atelectasis or developing infection or consolidation appropriate clinical situation . If there is high concern CT could be helpful to further evaluate . 2 . Mild cardiomegaly without frank pulmonary edema .