Case report
A healthy young woman with unremarkable history (G2P1) was sent to our institution.
The first trimester screening was normal (LCC 65mm - NT 1.4mm).
She came to our unit again at 17 weeks of pregnancy for an ultrasound routine examan. We noticed an umbilical cord cyst surrounded by two vessels, a single umbilical artery and umbilical vein.
Based on the findings we permormed serial ultrasound controls at 24, 27, 29 and 31 weeks of gestation.
At 24 weeks of gestational age we noticed edema of the Wharton´s jelly, without changes at 27 and 29 weeks of gestational ultrasound controls.
At 31 weeks of pregnancy another ultrasound shows that the Wharton´s jelly edema was increased without signs ot arterial thrombosis. Two weeks later the patient consults because of abscence of fetal movements and another ultrasound control was made, revealing a live fetus with diminished fetal movements.
Due to suspicion of incipient arterial thrombosis the patiente was hospitalized.
The baby was delivered prematurely (2.000 gr.). The presence of a large umbilical cord cyst with mucoid degeneration, Wharton´s jelly edema and single artery were confirmed, without any sign of arterial thrombosis.
17 weeks of gestation
Images 1-3 ; video 1: 2D and doppler images showing single umbilical artery and a large umbilical cord cyst.