Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left pigtail catheter , right chest port and AICD leads are in unchanged position . A lucency along the left mediastinum could represent medial pneumothorax , not significantly changed from earlier exam . Otherwise , no significant change in bilateral pleural effusions . No focal consolidation is present . No evidence of pulmonary vascular congestion .
    OUTPUT:
    
Lucency along the left mediastinum could represent medial pneumothorax , not significantly changed from earlier radiograph . Otherwise , no significant change from prior radiographs .