Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low limiting evaluation . Bibasilar atelectasis again noted with bilateral pleural effusions , slightly increased on the right compared with prior exam . Linear densities projecting over the left hemi thorax likely external . No pneumothorax . Cardiomediastinal silhouette appears grossly stable . Bony structures are intact .
    OUTPUT:
    
Bilateral pleural effusions with basilar atelectasis , slightly increased on the right .