Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The Swan - Ganz catheter terminates in the pulmonary outflow tract . The left - sided central line terminates in the mid to lower SVC . The endotracheal tube is 5 cm above the carina . The enteric tube extends beyond the GE junction with tip out of view . Lung volumes are low . The heart is moderately enlarged . There has been interval aeration of the left upper lung . There is a persistent left retrocardiac opacity which may represent a small left pleural effusion and atelectasis . Airspace opacities in the right lung appear unchanged compared to prior study likely representing pulmonary edema , however a superimposed pneumonia can not be excluded . There is no pneumothorax .
    OUTPUT:
    
1 . Patient is status post bronchoscopy with interval aeration of the left upper lung . 2 . Multiple airspace opacities in the right lung are unchanged compared to prior study , likely representing pulmonary edema , however a superimposed pneumonia can not be excluded . 3 . Persistent retrocardiac opacity likely represents small left pleural effusion and atelectasis .