{Reference Type}: Case Reports {Title}: Persistent omphalomesenteric duct in an infant with trisomy 21. {Author}: Aghababaie A;Ho J;Kelay A;Salt P; {Journal}: BMJ Case Rep {Volume}: 17 {Issue}: 5 {Year}: 2024 May 8 暂无{DOI}: 10.1136/bcr-2024-259671 {Abstract}: We present the case of a term newborn with trisomy 21 who presented to the paediatric emergency department with periumbilical flare and green-brown discharge from a clamped umbilical cord, initially suspected to be omphalitis. However, it was noticed later, that when the infant strained or cried, a thick, bubbling and offensive green-brown discharge came out of the clamped umbilical cord with umbilical flatus. An ultrasound abdomen and umbilical cord confirmed the presence of a persistent omphalomesenteric duct (POMD). He was then transferred to the paediatric surgical unit. There, he underwent a laparotomy and surgical resection of the POMD and was discharged home 2 days later.