PAEA Surgery End Of Rotation (EOR) Practice Exam

Which type of tissue is commonly ectopic in Meckel's diverticulum?

1. Pancreatic

2. Colon

3. Hepatic

4. Adrenal

The correct answer is: Pancreatic

In Meckel's diverticulum, the type of ectopic tissue that is most commonly found is pancreatic tissue. This occurs because Meckel's diverticulum is a remnant of the embryonic yolk sac and can harbor various types of ectopic tissue. The presence of pancreatic tissue is particularly significant due to its potential to cause complications. This can lead to episodes of gastrointestinal bleeding or obstruction if the pancreatic tissue becomes inflamed or if it secretes digestive enzymes inappropriately. The other types of ectopic tissue listed, such as colon, hepatic, and adrenal tissue, are not typically seen in Meckel's diverticulum. The diverticulum is primarily associated with gastrointestinal structures, and while various ectopic tissues can occur, pancreatic tissue is the most frequently encountered. This makes it a key focus in the clinical context of diagnosing complications related to Meckel's diverticulum.