Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are seen with secondary crowding of the bronchovascular markings . Hazy opacities throughout the lungs may secondary to atelectasis although superimposed underlying parenchymal opacity is possible . Cardiac silhouette is accentuated by low lung volumes . No acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with crowding of the bronchovascular markings . Superimposed acute process would be difficult to exclude .