Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes bilaterally . Heart size is normal . The mediastinal and hilar contours are normal . The pulmonary vasculature is normal . Bilateral small to moderate effusions , increased from prior . Worsening bibasilar opacities . No pneumothorax . Diffuse haziness in the upper abdomen .
    OUTPUT:
    
1 . Worsening bibasilar opacities may be due to atelectasis , aspiration , or developing pneumonia . 2 . Bilateral small to moderate effusions are increased from prior . 3 . Diffuse haziness in the upper abdomen may suggest ascites .