Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A pleural effusion on the right has markedly decreased in size . There is still a small right - sided pleural effusion , however . There has been partial expansion of the right lung with residual streaky opacities suggesting atelectasis . There is no evidence for pneumothorax . The left lung remains clear . An interstitial abnormality has improved . There is a similar mild thoracolumbar compression deformity .
    OUTPUT:
    
Marked decrease in right - sided pleural effusion . No evidence of pneumothorax . Resolution of pulmonary congestion .