Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no free air below the right hemidiaphragm , though multiple dilated loops of small bowel are seen concerning for SBO . There is basilar atelectasis . No pneumothorax , effusion , or definite signs of pneumonia . Heart size can not be assessed due to low lung volumes . Mediastinal contour is normal . Bony structures are intact .
    OUTPUT:
    
Findings concerning for SBO without definite signs of free air . Basilar atelectasis is noted . Consider CT to further assess .