Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided chest tube is new in the interval with tip overlying the medial aspect of the left lower lung field . Previously noted large left pneumothorax is markedly decreased in size with only a small apical pneumothorax now visualized . The left lung has re-expanded with streaky opacities in the left lung base likely reflective of atelectasis . Right subclavian central venous catheter tip terminates in the lower SVC . Right lung is clear . Cardiac and mediastinal contours are normal . There is no evidence of pulmonary vascular congestion or pleural effusion . No acute osseous abnormalities visualized .
    OUTPUT:
    
Interval placement of left - sided chest tube with decreased size of left - sided pneumothorax , now small , with re-expansion of the left lung . Streaky left basilar atelectasis .