Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: After thoracoscopy , there has been significant interval decrease in the size of a large left pleural effusion . Mild amount of fluid persists within the left costophrenic angle and a linear opacity within the left mid lung likely reflects plate - like atelectasis . There is a small apical pneumothorax . There is also left basilar atelectasis . Unfolding and tortuosity of the aorta seen on prior radiographs appears similar . Cardiac margins are obscured by basilar opacity . Left chest tube terminates in the medial left upper lung adjacent to the aortic knob on the frontal view .
    OUTPUT:
    
Interval thoracoscopy with decreased left pleural fluid . Persistent left basilar atelectasis and a small amount of residual pleural fluid . Left chest tube in appropriate position . Tiny left apical pneumothorax .