Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is unchanged . The mediastinal and hilar contours are similar . There is continued mild pulmonary vascular congestion with worsening opacification in the lung bases likely reflective of worsening atelectasis . A trace left pleural effusion is likely present . No pneumothorax is identified . No acute osseous abnormality is seen .
    OUTPUT:
    
Worsening opacities in the lung bases may reflect worsening atelectasis . Infection or aspiration is not excluded . Possible trace left pleural effusion and mild pulmonary vascular congestion .