Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Nasogastric tube passes to the stomach . A right IJ line extends to the cavoatrial junction . There is no pneumothorax . There is increased opacity at the left lung base , possibly in part reflecting increased atelectasis , though developing pneumonia can not be excluded . Aeration at the right lung base is also worsened , with new confluence laterally and obscuration of the diaphreagm . Hilar contours are prominent , though unchanged . The heart size is mildly enlarged , stable . There is calcification of the aortic knob and descending aorta , while sternotomy wires and mediastinal surgical clips are in unchanged alignment . There are no acute osseous abnormalities .
    OUTPUT:
    
Interval increased opacity at the left and right lung bases , which could reflect developing pneumonia , though a component of this change on the left could also be accounted for by increased effusion and atelectasis . Clinical correlation or consideration of PA and lateral radiographs is recommended .