Meckel's Diverticulum
Pancreatic, jejunal, colonic and gastric.
What are the 4 types of mucosa that may be found in a Meckel's?
Asymptomatic, haemorrhage, obstruction, diverticulitis or perforation.
What are the 5 presentations of Meckel's?
Gastric mucosa, which secretes HCl.
What do 50% of Meckel's contain and what does this do?
Bright red blood in stools.
What does a patient with haemorrhaging Meckel's present with?
Congenital vestigial remnant of the vitellointestinal duct.
What is a Meckel's diverticulum?
4-6%
What is the lifetime risk of complication of an asymptomatic Meckel's?
Distal ileum, within 100cm of the ileocaecal valve.
Where is a Meckel's diverticulum?
Has affinity for a gastric mucosa.
Why do we administer 99mTc pertechnetate?
Gamma camera scan after administration of 99mTc pertechnetate.
How do you visualise a Meckel's?
Abdo pain, vomiting and constipation.
Give 3 symptoms that patients present with if they have a Meckel's obstruction.
2-3%
What percentage of the population has a Meckel's diverticulum?
25-50%
Haemorrhage accounts for what percentage of complications?
Less than 2 years old.
Haemorrhage as a complication is most common in what age group?
Fibrous bands may attach the Meckel's to the wall causing a volvulus, or obstruction by intussusception.
How does obstruction occur in Meckel's diverticulum?
3-6cm
How long is the Meckel's pouch?
Anti-mesenteric.
On which border is the Meckel's always found?