Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval placement of a left Pleurx catheter at the left lung base . The lungs are otherwise clear with minimal atelectasis . The cardiac and mediastinal contours are normal . A minimal left pleural effusion remains .
    OUTPUT:
    
Interval left Pleurx catheter placement in the anterior costophrenic angle with improvement in now minimal left pleural effusion .