Snapshot A 12-month-old child has iron-deficiency anemia refractory to iron therapy. His stool is repeatedly positive for occult blood. The parents bring the child to the ER because they notice some blood in his stool. To solidify the lesson, students are shown a gross pathology specimen. Introduction Congenital outpouching of the small intestine Caused by persistance of vitelline duct Found 2 feet from ileocecal valve in most cases Epithelium may be acid-secreting or pancreatic Presents in the first two years of life Epidemiology Occurs in 2% of the population Most common congenital anomaly of the GI tract Most frequently occurs in children < 2 years old Presentation Symptoms login to view 2 more bullets Physical exam login to view 2 more bullets IMAGING Abdominal X-ray login to view 1 more bullet STUDIES Meckel scintigraphy login to view 2 more bullets Differential Bowel obstruction, Hirschsprung's disease Treatment Surgical intervention login to view 3 more bullets Complications May be complicated by diverticulitis, volvulus, and intussusception Prognosis Very good to excellent Some cases are asymptomatic and discovered incidentally