Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There has been interval removal of the left chest tube . Retrocardiac opacity with air bronchograms is again seen , unchanged from prior exam and possibly representing atelectasis , but can not exclude pneumonia or aspiration in the right clinical setting . There is increasing pulmonary vascular congestion . A small left apical pneumothorax is unchanged to prior exam . Bilateral pleural effusions are seen , left greater than right . The cardiomediastinal silhouette is stable .
    OUTPUT:
    
1 . Unchanged small left apical pneumothorax . 2 . Retrocardiac opacity , unchanged from prior exam and possibly representing atelectasis , but can not exclude pneumonia or aspiration in the right clinical setting . 3 . Increase in pulmonary vascular congestion . 4 . Bilateral pleural effusions , left greater than right .