Meckel’s Diverticulum

by Carlo Raj, MD

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    Meckel's Diverticulum Brings you back to your embryologic issue. First and foremost, what you have to have memorized is that this is a remnant of the vitelline duct. And where your Meckel diverticulum would be is the rule of twos. It is 2 inches long. It is from 2 feet from the IC valve, which stands for ileocecal valve, 2% of the population, and two times greater in boys. Rule of twos, Meckel diverticulum. It's a remnant. Now you are two feet from the ileocecal valve, you are nowhere near the stomach. Why do I bring that to your attention? Because in our discussion of neoplasia, what we discussed was the fact that there is a Choristoma or heterotopic rest that you want to pay attention to. There's every possibility that you might find parietal cells that are normally located in the stomach down in the Meckel diverticulum. That is the definition of a choristoma or heterotopic rest. Do not forget that. This is in fact a true diverticulum and then may contain the gastric mucosa. That, of course, referring to once again a heterotopic rest. With Meckel's diverticulum, you're worried about hemorrhage. Well, the leading edge, this might be the handle in which it is then going to fold upon each other. So think about where you are, in your ileocecal valve, when you fold upon each other, what did you just form? You feel this and it feels like sausage–like structure. And now you have a child that is complaining of abdominal pain and there's currant jelly stool, this is intussusception. In addition, you're also worried about this being the handle with complication of valvulus, twisting of the mesentery, twisting of the mesentery. And with Meckel diverticulum, there's every possibility of incarceration. And perforation taking place as well...

    About the Lecture

    The lecture Meckel’s Diverticulum by Carlo Raj, MD is from the course Small and Large Intestine Diseases.

    Included Quiz Questions

    1. Vitellointestinal duct
    2. Wolffian duct
    3. Mullerian duct
    4. Ductus venosus
    5. Thoracic duct
    1. Choristoma
    2. Hamartoma
    3. Metaplasia
    4. Hypertrophy
    5. Hyperplasia
    1. Malabsorption
    2. Volvulus
    3. Perforation
    4. Intussusception
    5. Peptic like ulcer of the mucosa
    1. Meckel's diverticulum
    2. Inflammatory bowel disease
    3. Juvenile hamartomatous polyp
    4. Ischemic colitis
    5. Colon cancer

    Author of lecture Meckel’s Diverticulum

     Carlo Raj, MD

    Carlo Raj, MD

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