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Left-sided diverticular disease (involving the sigmoid colon) is most common in the West, while right-sided diverticular disease (involving the ascending colon) is more common in Asia and Africa. [8] Among people with diverticulosis, 4–15% may go on to develop diverticulitis. [3]
Segmental colitis associated with diverticulosis (SCAD) is a condition characterized by localized inflammation in the colon, which spares the rectum and is associated with multiple sac-like protrusions or pouches in the wall of the colon (diverticulosis).
CT scan showing extensive diverticulosis of the sigmoid colon Diverticular disease Whole slide of a transverse section of the left colon with diverticulosis. Diverticulosis is defined by the presence of multiple pouches (diverticula) in the colon. [22] In people without symptoms, these are usually found incidentally during other investigations.
SCAD, also known as diverticular colitis, is when there is mucosal inflammation in a colonic segment with diverticulosis that may or may not have evidence of diverticulitis, or inflammation within or around a diverticulum itself. The involved colonic segment is mostly confined to the sigmoid. The cause is currently unknown.
This is a shortened version of the ninth chapter of the ICD-9: Diseases of the Digestive System. It covers ICD codes 520 to 579. The full chapter can be found on pages 301 to 328 of Volume 1, which contains all (sub)categories of the ICD-9. Volume 2 is an alphabetical index of Volume 1.
About 10% of cases have a more serious cause including gallbladder (gallstones or biliary dyskinesia) or pancreas problems (4%), diverticulitis (3%), appendicitis (2%) and cancer (1%). [2] More common in those who are older, ischemic colitis , [ 5 ] mesenteric ischemia , and abdominal aortic aneurysms are other serious causes.
Benign indications for sigmoidectomy include diverticular disease, especially when complicated by perforation or fistulae, sigmoid volvulus, trauma, and ischemic or infectious colitis. [11] When a sigmoidectomy is followed by terminal colostomy and closure of the rectal stump; it is called a Hartmann operation .
Hinchey Classification is used to describe perforations of the colon due to diverticulitis. The classification was developed by Dr. E John Hinchey (1934–present), a general surgeon at the Montreal General Hospital and professor of surgery at McGill University. Diverticulosis (the presence of bowel diverticula) is an essentially ubiquitous ...