Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right - sided pigtail catheter has been removed . There remains a trace right - sided pleural effusion . A possible air-fluid level is also seen , representing a small loculated hydro pneumothorax . There is a subsegmental basilar atelectasis bilaterally . The remaining lungs are clear . The cardiomediastinal silhouette as compared well .
    OUTPUT:
    
Interval removal of the right - sided pigtail catheter with stable likely loculated hydro pneumothorax .