Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal upright view of the chest was obtained portably . Low lung volumes result in bronchovascular crowding . A left pleural effusion is increased from ___ . Blunting of the right costophrenic sulcus is similar . Left basilar opacity is probably associated atelectais . Supervening infection can not be excluded . Cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Bilateral pleural effusions , left larger than right , with left basilar atelectasis . Supervening infection can not be excluded .