Omphaloceles are surgically repaired, although not always immediately. The sac protects the abdominal contents and allows time for other more serious problems (such as heart defects) to be dealt with first, if neccessary.
To fix an omphalocele, the sac is covered with a special silo, which is then stiched in place. Slowly over time the volume of the silo is decreased and the abdominal contents are pushed into the abdomen.
When the omphalocele can comfortably fit within the abdominal cavity, the synthetic material is removed and the abdomen is closed.
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