Fetal and funicular vascular anomalies: identification with prenatal US.
Vascular anomalies of the umbilical cord and fetus were evaluated with ultrasound in 11 fetuses. The anomalies included true knot of the cord (n = 1), umbilical vein varix (n = 1), persistent right umbilical vein (n = 1), and unilateral hypertrophy of the iliac artery in cases of a single umbilical artery (n = 8). One fetus with a single umbilical artery had a meningocele, hydrocephalus, and polyhydramnios; another had mitral atresia. The other fetuses were healthy except for the vascular abnormalities. A previously unreported finding in the identification of a single umbilical artery is described.
Jeanty
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Department of Radiology, Vanderbilt University Medical Center, Nashville, TN 37232.
D000013:Congenital Abnormalities / Q000175:diagnosis*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography; D014469:Umbilical Arteries / Q000002:abnormalities; D014470:Umbilical Cord / Q000473:pathology*; D014471:Umbilical Veins / Q000002:abnormalities; D014648:Varicose Veins / Q000175:diagnosis