We discuss an ICSI pregnancy in a 31 year old gravida 2 para 0 woman, after 15 week miscarriage and difficulty conceiving. Low BMI 21.0 and teetotal. Low risk 1st trimester screening, NT 2.30 mm at 13 + 3 weeks. 20 + 5 week scan showed no abnormality and a normal abdomen. Repeat scan at 28 weeks showed a large AC >97th centile with normal fetal growth, scan review arranged for 2 weeks. Prominent umbilical vein noted at 30 week scan and referral to FMU. Umbilical vein varix measuring 14.0 x 24.0 x 51.9 mm diagnosed, minimal turbulence noted within the vein. No other structural defects seen, umbilicoplacental Dopplers and ductus venosus flow normal, however mildly elevated MCA peak velocity. The couple were counselled that this is a rare finding with uncertain outcome, therefore the plan was for close fetal monitoring, prophylactic steroids and delivery at 34 weeks. Modern colour Doppler technology including 3D Power Doppler was helpful not only in making the diagnosis but when counselling the couple (see images). Supporting information can be found in the online version of this abstract Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.