Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Bilateral pigtail catheters have been removed . There is a small left apical pneumothorax . There is no right pneumothorax . A small left effusion and left lower lobe atelectasis persist . Cardiac and mediastinal contours are stable . A right PICC is unchanged in position .
    OUTPUT:
    
Small left apical pneumothorax . No right pneumothorax .