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Meckel diverticulum
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Meckel diverticulum

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Contributors: Michael W. Winter MD, Nishant H. Patel MD, Desiree Rivera-Nieves MD, Khaled Bittar MD
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Synopsis

A Meckel diverticulum is a remnant of the omphalomesenteric duct in the distal ileum. Patients with a Meckel diverticulum typically present with painless hematochezia and/or bowel obstruction. Alternatively, a Meckel diverticulum should be considered if an abdominal mass is detected or in cases of abdominal pain, often right lower quadrant, of unclear etiology.

Meckel diverticulum is congenital; there is no known genetic predisposition. Most typically, bleeding from a Meckel diverticulum occurs in children, often younger than 2 years. However, a Meckel diverticulum can be diagnosed at any age, and it can be an incidental finding on abdominal surgery.

A Meckel diverticulum can predispose patients to intussusception, ulcer formation, bowel inflammation, perforation, or foreign body entrapment, all occurring at the diverticulum.

The acuity of diagnosing and managing a Meckel diverticulum relates to the severity of gastrointestinal (GI) bleeding, if present. Hemodynamically compromising bleeding will require more emergent attention with possible surgical resection. A more indolent presentation characterized by abdominal pain of unclear etiology will often be evaluated over the course of weeks to months.

Codes

ICD10CM:
Q43.0 – Meckel's diverticulum (displaced) (hypertrophic)

SNOMEDCT:
37373007 – Meckel's Diverticulum

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Last Reviewed: 05/24/2017
Last Updated: 12/14/2018
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Meckel diverticulum
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Meckel diverticulum : Abdominal mass, Decreased bowel sounds, Hematochezia, Hemoccult positive stool, RLQ pain
Imaging Studies image of Meckel diverticulum
CT scan of abdomen and pelvis demonstrating enhancing nodular focus extending from ileum, which was path proven Meckel diverticulitis.
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