Primary or silo
A baby born with gastroschisis has a hole in the abdominal wall with the bowel
Ideally, all of the bowel can be placed in the belly & the hole repaired primarily, leaving a fairly normal looking bellybutton. If the bowel does not all fit in, a "silo" can be constructed to contain it. The silo is then serially reduced over 5-7 days until it is all inside , & the defect can be repaired.