Large bowel obstruction
Patients present with abdominal pain and the inability to move bowels or pass flatus, and occasionally nausea with emesis.
Unlike small bowel obstructions, large bowel obstructions have a higher likelihood of occurring in the setting of colorectal malignancies. Therefore, patients with strong family history of colorectal cancer and overdue surveillance or a known history of colorectal cancer should be considered higher risk for presenting with large bowel obstructions. Prior abdominal surgery with adhesion formation and chronic large bowel inflammation with stricture formation (eg, from ischemia, inflammatory bowel disease, recurrent diverticulitis) can also predispose a patient to developing a large bowel obstruction.
Marked dilatation of bowel loops and abrupt termination of gas within the descending colon is referred to as a colon cutoff sign.
K56.50 – Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
K56.609 – Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction
281254000 – Large bowel obstruction
- Colonic tumor / colon cancer
- Bowel adhesions
- Colonic volvulus
- Abdominal hernias
- Acute appendicitis
- Colonic polyps
- Pseudomembranous colitis
- Clostridioides difficile colitis
- Toxic megacolon
- Infectious colitis (eg, amebic colitis)
- Small bowel obstruction
- Pseudo-obstruction (Ogilvie syndrome)