Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate - to - large pleural effusion on the left that appears probably free - flowing , while on the right , a large lenticular opacity projecting over the medial right mid lung suggests a large loculated pleural effusion along the posterior chest . A chest tube projects along the base of the right hemithorax with patchy opacities that suggest a combination of atelectasis or pneumonia with small possible areas of additional loculated pleural effusion . Upper lungs are relatively spared , but with a mild interstitial abnormality suggesting mild vascular congestion . Pleural effusions have increased since the prior radiographs . However , findings at the right base in the vicinity of a right - sided chest tube are relatively little changed .
    OUTPUT:
    
Pulmonary embolism and pleural effusions . Question size of effusions .