Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Analysis is performed in direct comparison with the next preceding similar chest examination of ___ . The previously described two right - sided pleural drainage tubes remain in place . The right - sided pleural density that obscures the right - sided diaphragm appears rather unchanged on both frontal and lateral views . No new parenchymal pulmonary abnormalities are identified . No significant mediastinal shift has developed .
    OUTPUT:
    
Moderate amount of right - sided pleural effusion , stable appearance in comparison with study with five days ' examination interval .