The umbilical polyp.

Anomalies of the omphalomesenteric duct (OMD) present a variety of surgical problems. The most readily apparent of these lesions is the umbilical polyp. One-third of patients explored at our hospital and 56% of patients reviewed had an additional OMD anomaly when explored for an umbilical polyp. The preferred treatment for this lesion should be a mini-laparotomy after the presence of intestinal mucosa at the umbilicus is confirmed.