Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is at the upper limits of normal size . The mediastinal and hilar contours appear within normal limits . There are moderate bilateral pleural effusions , greater on the right than left . Associated parenchymal opacities are most likely compatible with atelectasis . There is no pneumothorax . No frank pulmonary edema is seen . Small osteophytes are noted throughout the mid - to - lower thoracic spine .
    OUTPUT:
    
Moderate bilateral pleural effusions .