Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube ends 2 .3 cm above the carina . Pulmonary edema is minimal . Cardiac contour is moderately enlarged in this patient with prior sternotomy . There is a stent graft in the ascending aorta . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Unchanged minimal pulmonary edema . There is no evidence of pneumonia .