Rationale: Patent vitellointestinal duct is the most common omphalomesenteric duct anomaly to present with symptoms.
Patient concerns: A 10-day-old child presented with increase in the size of a polypoidal lesion into a large, "Y"-shaped reddish, prolapsing lesion, discharging gaseous, and fecal matter at her umbilicus. A laparoscopic exploration was performed, followed by wedge resection and anastomosis. No complications occurred during postoperative follow-up.
Diagnoses: A patent vitellointestinal duct with ileal prolapse.
Interventions: The resection of extended intraperitoneal intestinal tube was performed.
Outcomes: During the follow-up 3 months after surgery, the umbilical cord of the child healed well after surgery.
Lessons: Timely surgical treatment can minimize the occurrence of complications, and the overall prognosis is good after surgery.
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