Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . There is redemonstration of prior midline sternotomy and CABG as well as a prosthetic aortic valve . There has been interval removal of the previously seen left PICC . Blunting of the left costophrenic angle is not significantly changed , likely secondary to scarring and a small pleural effusion . There is no focal consolidation . The heart size is upper limits of normal . Mitral annular calcifications are noted . There is no right pleural effusion . No pneumothorax is seen . The mediastinal contours are normal .
    OUTPUT:
    
Unchanged blunting of the left costophrenic angle suggestive of a small pleural effusion with scarring or atelectasis . No acute cardiac or pulmonary process otherwise noted .