Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright chest radiograph was provided . As seen previously , there are bilateral pleural effusions slightly increased on the left and stable on the right . The subjacent opacities in the lower lungs could represent atelectasis versus pneumonia . The upper lungs are well aerated . The cardiomediastinal silhouette is stable . Bony structures are intact . TIPS partially imaged in the right upper quadrant .
    OUTPUT:
    
Bilateral pleural effusions , subjacent consolidations , may represent atelectasis versus pneumonia .