A<unk> , a true congenital<unk> , is a slight bulge in the small intestine present at birth and a vestigial remnant of the omphalomesenteric duct (also called the vitelline duct or yolk stalk). It is the most common malformation of the gastrointestinal tract and is present in approximately 2% of the population, with males more frequently experiencing symptoms.<unk>  was first explained by Fabricius Hildanus in the sixteenth century and later named after Johann Friedrich<unk> , who described the embryological origin of this type of<unk>  in 1809.
Meckel's diverticulum
Hartnup disease
Intussusception 
Mirizzi's syndrome
Hirschsprung's disease
Vesicointestinal fistula
Cord colitis syndrome
Tropical sprue