Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since earlier same day chest radiograph , the small right apical pneumothorax is unchanged . The left lower lung base parenchymal opacity is also stable may be due to small pleural effusion and associated atelectasis . In the right clinical setting , superimposed infection can not be ruled out . Stable appearance of moderate cardiomegaly . The right chest tube position and right internal jugular central venous line is unchanged .
    OUTPUT:
    
1 . Unchanged small right apical pneumothorax and left lower lung base parenchymal opacity compared to earlier same day chest radiograph .