Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A nasogastric tube is seen extending below the diaphragm positioned appropriately within the stomach . The stomach demonstrates significant distention , consistent with patient 's known small bowel obstruction . Heterogeneous opacities at the right lung base and more confluent left basilar opacification is likely secondary to atelectasis , and overall similar to the prior exam . There is no large pleural effusion . There is no evidence of pneumothorax . Cardiomediastinal contours are stable compared to exams dated back to at least ___ .
    OUTPUT:
    
1 . Nasogastric tube extends below the diaphragm with the tip located within the body of the stomach . Distention of the stomach and visualized small bowel loops is consistent with patient 's known small bowel obstruction as seen on the CT of the abdomen performed on ___ at 7 :30 p .m . 2 . Bibasilar atelectasis , while due in part to elevated diaphragm , could also be due to aspiration .