Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Clips project along the mediastinum . The heart is normal in size . The mediastinal and hilar contours appear unchanged . There is no pleural effusion . There is potentially a trace residual right apical pneumothorax but decreased and perhaps fully resolved , compatible with an unremarkable post-operative course . Bony structures are unremarkable . Moderate rightward convex curvature centered at the thoracolumbar junction .
    OUTPUT:
    
Decreased pneumothorax . Although it is difficult to exclude a tiny residual pneumothorax , there is no evidence for a substantial residual pneumothorax . No evidence of acute disease .