Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right internal jugular central venous catheter has been removed . Mild to moderate enlargement of the cardiac silhouette is unchanged . The mediastinal contour is similar . No pulmonary edema is present , and the hilar contours are unchanged . There is minimal retrocardiac patchy opacity , likely atelectasis . No large pleural effusion or pneumothorax is detected , however , the left costophrenic angle is not completely included in the field of view .
    OUTPUT:
    
Retrocardiac atelectasis . No evidence of pulmonary edema .