Gastric augmentation in isolated congenital microgastria.

A 10-month-old boy with isolated congenital microgastria is reported. This is an extremely rare condition with only 2 previous similar case reports. The patient was treated successfully with early gastric augmentation. Although the embryologic origin of this anomaly was widely believed to be in the fourth week of gestation, the anatomic features in the current case point to the arrest of development at least after the eighth week of fetal life.