Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . There are increased opacities in the lungs at the bases and most conspicuous in the right mid lung . Blunting of the posterior costophrenic angle on the right is compatible with a small effusion . Cardiomediastinal silhouette is within normal limits . Osseous structures demonstrate no acute osseous abnormality .
    OUTPUT:
    
Small right effusion and hazy opacities in the lungs at the bases and the right mid lung could be due to atelectasis , infection , or aspiration