PMC10098078_01
The fetal ultrasonography of umbilical vein varix (UVV) in the perinatal period. Fetal ultrasonography revealed a 17 mm x 10 mm UVV near the hepatic hilum (arrow). Dilation of the umbilical vein remained the same throughout the perinatal period.
fped-11-1154820-g001.jpg
PMC10098078_01_fped-11-1154820-g001.jpg
F1
The mother was followed up every 3-4 days, and no change in the dilation of the umbilical vein was observed during follow-up (Figure 1).
Ductus venosus and dilation of the portal sinus. Closure of the ductus venosus was confirmed on the 9th day of life. Dilation of the portal vein resolved on the 42nd day of life.
fped-11-1154820-g002.jpg
PMC10098078_01_fped-11-1154820-g002.jpg
F2
On the 42nd day of life, dilation of the portal vein resolved (Figure 2).
The pathological diagnosis of the placenta indicated fetal thrombotic vasculopathy. Pathological findings of the placenta, in addition to normal capillaries (white arrows), thrombus formation in the umbilical artery, and reduction and collapse of villous interstitial capillaries in the periphery (black arrows) are observed (scale bar = 500 microm).
fped-11-1154820-g003.jpg
PMC10098078_01_fped-11-1154820-g003.jpg
F3
The pathological diagnosis of the placenta indicated fetal thrombotic vasculopathy (FTV), but no chorioamnionitis or umbilical cord inflammation was found (Figure 3).