Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate intact sternotomy wires and a right internal jugular central catheter with the tip at the cavoatrial junction . A small right pleural effusion is decreased from prior radiograph . A small left pneumothorax is unchanged . No focal opacity concerning for infection is identified .
    OUTPUT:
    
1 . Unchanged small left pneumothorax 2 . Small right pleural effusion , improved from radiograph on the day prior .