Bowel obstruction / Ileus

What are the sites of bowel obstruction?
What is ileus?

Dilated bowel which may be from:

What are the common causes of ileus?
What are the radiological findings of ileus?
How is it different from bowel obstruction?
What are the useful imaging procedures in the evaluation of bowel obstruction ?
What are the radiological findings of small bowel obstruction?

The characteristics of small bowel obstruction include:

Absence or paucity of colon gas

 

What are the common causes of small bowel obstruction?
What are the radiological findings of large bowel obstruction?
What are the common causes of large bowel obstruction?

Small bowel obstruction

  • Multiple dilated small bowel loops are seen (white arrowheads).
  • There is fecal material in the right and left colon (arrows).
  • Air is seen in the rectum.
  • The surgical staples indicate recent abdominal surgery (black arrowheads).

 

 

Small bowel obstruction

Cross lateral view shows multiple dilated fluid filled loops of bowel with air fluid levels.

  • A: The arrow points to post op changes in the abdominal wall. Arrowheads point to the normal size of distal small bowel and recto-sigmoid (RS).
  • B: Arrowheads point to dilated small bowel loops. The arrows point to the area of obstruction.

 

Large bowel Obstruction

  • Dilated bowel loops proximal to the obstruction
  • Arrow points to the etiology of obstruction.