Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Small right apical pneumothorax has completely resolved . Mild right basilar atelectasis has also improved . Residual very small pleural thickening on the right side is very mild . There is no pleural effusion . Mediastinal and cardiac contour are within normal limits .
    OUTPUT:
    
Right pneumothorax has completely resolved .