Umbilical cord cyst
Fluid-filled structure within the umbilical cord that may indicate underlying fetal abnormalities.
Full Definition
An umbilical cord cyst is a fluid-filled cavity found within the umbilical cord during prenatal ultrasound examination. These cysts can be true cysts (lined with epithelium) or pseudocysts (lacking epithelial lining). While some are isolated findings, umbilical cord cysts may be associated with chromosomal abnormalities, particularly trisomy 18, or other structural anomalies. Their presence typically warrants additional genetic counseling and detailed fetal anatomical survey.
Usage
Usage note: Always specify size and location when documenting cord cysts.
In Context
- "A 2cm umbilical cord cyst was identified during the routine anatomy scan at 20 weeks." — Ultrasound report
- "Given the umbilical cord cyst, genetic counseling was recommended to discuss amniocentesis." — Clinical consultation note