Perforation of Meckel's diverticulum with ectopic gastric mucosa.

Meckel's diverticulum is a congenital anomaly of the gastrointestinal tract that occurs in approximately 2% of the population. It is the result of incomplete obliteration of the vitelline duct (ductus omphaloentericus). During the fetal period, this duct connects the yolk sac with the primitive intestine and normally closes around the 5th-7th week of gestation. It is a true diverticulum because it contains all layers of the intestinal wall. Most diverticula are asymptomatic; however, they may lead to serious complications such as inflammation, perforation, obstruction, and bleeding. Our case report presents a case study of an 18-year-old patient who presented to the surgical outpatient clinic with several hours of abdominal pain in the right lower quadrant, mimicking acute appendicitis. However, the perioperative findings confirmed a different pathology: a perforation of Meckel's diverticulum.