Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright frontal and lateral views of the chest . The lung volumes are low with crowding of the bronchovascular markings . Bibasilar opacities most likely represent atelectasis however focal pneumonia or aspiration are not excluded . There are small bilateral , right greater than left , pleural effusions . Cardiomegaly is unchanged . No pneumothorax .
    OUTPUT:
    
Bibasilar opacities most likely represent atelectasis in the setting of low lung volumes . Pneumonia or aspiration is not excluded . Small , right greater than left , pleural effusions .