What is Meckel's diverticulum?

Meckel's diverticulum is described as a congenital pouch in the small intestine, specifically an outpouching that typically occurs near the ileum, which is the final section of the small intestine. This condition arises from an incomplete obliteration of the omphalomesenteric duct during embryonic development.

The presence of this diverticulum is relatively common and can be found in about 2% of the population. Though often asymptomatic, it can lead to complications such as bleeding, inflammation, or obstruction. When diagnosing, it is important to recognize its congenital nature, differentiating it from other intestinal abnormalities. The focus on its anatomic relationship and the associated potential of an asymptomatic presentation helps in understanding the clinical approach towards Meckel's diverticulum.

The other choices refer to different conditions or abnormalities that do not accurately describe Meckel's diverticulum, underscoring the unique nature of this congenital pouch.