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Meckel's Diverticulum

What is Meckel's diverticulum?

Meckel's diverticulum is a small pouch in the wall of the intestine, near the junction of the small and large intestines. The pouch is a remnant of tissue from the prenatal development of the digestive system. It is not made of the same type of tissue as the small intestine, but, instead, is made of the type of tissue found in the stomach or the pancreas.

The tissue in Meckel's diverticulum produces acid, just as the tissue of the stomach does. The intestinal lining is sensitive to being in contact with acid, and eventually an ulcer can form. The ulcer can perforate (rupture), causing waste products from the intestine to leak into the abdomen. A serious abdominal infection called peritonitis can result. The intestine can also become obstructed (blocked) by Meckel's diverticulum.

How often does Meckel's diverticulum occur?

Meckel's diverticulum is the most common birth defect of the digestive system. It is present in about 2 percent of all infants. Most people with Meckel's diverticulum will never have any symptoms or problems.

Who is at risk for Meckel's diverticulum?

One to three percent of all infants have symptoms of Meckel's diverticulum. The peak age for symptoms to occur is 2 years old. Children over age 10 rarely have symptoms of Meckel's diverticulum.

Boys develop symptoms of Meckel's diverticulum three times more often than girls.

Why is Meckel's diverticulum of concern?

When the intestine develops an ulcer, significant bleeding can result, causing anemia (low numbers of red blood cells in the bloodstream). If enough blood is lost, a child may go into shock, which is a life-threatening situation. Further, a serious infection can occur if the intestine perforates and leaks waste products into the abdomen.

What are the symptoms of Meckel's diverticulum?

The symptom seen most often with Meckel's diverticulum is the passage of a large amount of dark red blood from the rectum. There may also be brick-colored, jelly-like stool present. Passing the blood is usually painless, although some children experience abdominal pain.

If your child passes blood or a bloody stool from the rectum, you should contact your child's physician as soon as possible.

Symptoms of Meckel's diverticulum may resemble other conditions or medical problems. Please consult your child's physician for a diagnosis.

How is Meckel's diverticulum diagnosed?

In addition to a complete medical history and physical examination, imaging tests may be done to evaluate the intestinal tract. Diagnostic procedures for Meckel's diverticulum may include the following:

Treatment for Meckel's diverticulum:

Specific treatment for Meckel's diverticulum will be determined by your child's physician based on the following:

Physicians will usually recommend that a Meckel's diverticulum that is causing symptoms (such as bleeding) be removed with an operation. Under general anesthesia, an incision will be made in the abdomen and the abnormal tissue will be removed. Stitches and/or a special tape called steri-strips will be used to close the incision when the operation is completed.

Your child's physician or nurse will give you instructions to follow regarding your child's diet, pain medications, bathing, and activity at home.

Will a child with Meckel's diverticulum have problems in the future?

There are usually no long-term problems after Meckel's diverticulum is repaired.

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