Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since the prior exam , an endotracheal tube has been placed . It is 5 .3 cm from the carina . Again , there is mild - to - moderate pulmonary edema , slightly increased on the left . A tiny left pleural effusion is difficult to exclude . There is no pneumothorax . The mediastinal contours are normal . The heart is mildly enlarged .
    OUTPUT:
    
Satisfactory position of endotracheal tube . Mild - to - moderate pulmonary edema , slightly increased on the left this the prior exam .