Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube and right subclavian central line again seen , similar in location . No pneumothorax is detected . The cardiomediastinal silhouette is enlarged , but unchanged . Again seen are is diffuse vascular plethora and alveolar opacity in both lungs , slightly less pronounced in the left upper zone . The overall appearance is similar , but slight interval increase in the right upper zone opacity can not be excluded . Probable bilateral effusions with underlying collapse and / or consolidation .
    OUTPUT:
    
Overall similar to 1 day earlier . Possible slight interval increase in the right upper zone opacity .