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Diseases reference index «Meckel's diverticulum»

A Meckel's diverticulum is a pouch on the wall of the lower part of the small bowel that is present at birth (congenital). The diverticulum may contain tissue from the stomach or pancreas.

Causes

A Meckel's diverticulum is tissue left over from structures in the unborn baby's digestive tract that were not fully reabsorbed before birth. Approximately 2% of the population has a Meckel's diverticulum, but only a few people develop symptoms.

Symptoms

  • Abdominal discomfort or pain ranging from mild to severe
  • Passing of blood in the stool

Symptoms often occur during the first few years of life, but may not start until adulthood.

Exams and Tests

  • Blockage of the intestine
  • Inflammation of the pouch (diverticulitis)
  • Invisible (occult) blood in the stool
  • Painless bleeding in the intestine (see GI bleeding)
  • Visible blood in the stool

Tests:

  • Hematocrit
  • Hemoglobin
  • Stool smear for invisible blood (stool guaiac)
  • Technetium scan

Treatment

Surgery to remove the diverticulum is recommended if bleeding develops. In these rare cases, the segment of small intestine that contains the diverticulum is surgically removed. The ends of the intestine are sewn back together.

You may need iron replacement to correct anemia. If you have a lot of bleeding, you may need a blood transfusion.

Outlook (Prognosis)

Full recovery can be expected with surgery.

Possible Complications

  • Excess bleeding (hemorrhage)
  • Folding of the intestines (intussusception), a type of blockage
  • Peritonitis
  • Tear (perforation) of the bowel at the diverticulum

When to Contact a Medical Professional

See your health care provider promptly if your child passes blood or bloody stool or complains repeatedly of abdominal discomfort.

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