Meckel's diverticulum in exomphalos minor.

Fifty-four cases of exomphalos were reviewed. After the exclusion of five cases, seven out of 25 cases of exomphalos minor had co-existing Meckel's diverticulum compared with one out of 24 cases of exomphalos major. The high incidence of Meckel's diverticulum in exomphalos minor highlights the importance of surgical rather than manual reduction of the sac contents in order to exclude the presence of viscera from the sac before division. Also, the raised incidence of Meckel's diverticulum in general may well be due to a raised incidence in exomphalos minor in particular.