Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The ET tube terminates approximately 2 .6 cm above the carina . The NG tube traverses below the diaphragm with the tip out of view of the scope of the film . There is moderate cardiomegaly , stable compared to prior exams dating back to at least ___ . There is stable postop mediastinal widening . The Swan - Ganz catheter terminates in the pulmonary outflow tract . Lung volumes are low . There is stable streak of atelectasis in the right mid lung , unchanged compared to the prior exam . There has been interval improvement of the left lower lobe atelectasis , with a residual small left pleural effusion . No new focal consolidations are seen . There is no pneumothorax .
    OUTPUT:
    
1 . No evidence of a pneumothorax . 2 . Interval improvement of left lower lobe atelectasis with a residual small left pleural effusion .