Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since prior , there has been no significant change of large right and moderate left layering pleural effusions . Cardiomegaly is unchanged . Pulmonary vasculature is dilated but there is no evidence of pulmonary edema . Bibasilar atelectasis is similar . There is no pneumothorax .
    OUTPUT:
    
Stable appearance of bilateral layering pleural effusions , the extent of which obscures underlying lung abnormalities .