MSFinals-4685

A 35 year old pregnant woman undergoes routine pregnancy screening blood tests and is found to have an elevated alpha-fetoprotein level. This prompts investigation with ultrasound scanning. The scan reveals a fetus with an anterior abdominal wall defect and mass protruding through, which appears to still be covered with an amniotic sac.
What is the standard course of action for managing this condition, based on the probable diagnosis?