What is an umbilical cord cyst?
Umbilical cord cysts are outpockets in the cord that can be visualized with an ultrasound in the first trimester. There are two types of cysts: true cysts and false cysts. True cysts are lined with cells and have remnants of embryonic structures inside, whereas false cysts are just fluid-filled sacs.
When large cysts occur near the umbilical cord insertion, doctors should closely monitor them to ensure that the cyst is not blocking umbilical cord blood flow and IUGR (intrauterine growth retardation) which can result in significant injury to the developing fetus.
- Pub Med (Radiology): First-trimester umbilical cord cysts
- March of Dimes: Pregnancy Complications – Umbilical cord abnormalities
- Medscape: Cord Cysts
- Journal of the National Medical Association – Subchorionic placental cyst – a cause of fetal growth retardation – ultrasound and color-flow Doppler diagnosis and follow-up