Meckel's diverticulum: its association with congenital malformation and the significance of atypical morphology.

Retrospective analysis of the records of a children's hospital shows an increased incidence of Meckel's diverticulum in children born with major malformation of the umbilicus, alimentary tract, nervous system or cardiovascular system in descending order. A consideration of the risks associated with Meckel's diverticulum suggests that elective resection is indicated only for diverticula that are atypical on inspection or palpation.