Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A small to moderate apical and lateral left pneumothorax is unchanged . There is left lower lobe collapse . The left pigtail catheters in unchanged position . The right PICC ends in the low SVC . The right lung is grossly clear . The cardiac and mediastinal contours are stable .
    OUTPUT:
    
Unchanged appearance of a small to moderate left apical and lateral pneumothorax . Persistent left lower lobe collapse .