Absence of the ductus venosus (ADV) is a rare vascular anomaly; however, the advent of
color Doppler sonography has facilitated detailed analysis of the fetal venous system, and …

Objective To assess the clinical significance of the absence of the ductus venosus. Design A
retrospective study with a review of the literature. Methods The archives of our ultrasound …

Umbilical artery thrombosis (UAT) is rare and few prenatally diagnosed cases have been
reported. We describe 2 cases of fetal growth restriction prenatally diagnosed as UAT by …

Background Abnormalities in the number of vessels can be found for both the umbilical
artery and vein. We sometimes encounter cases of a decreased number of umbilical cord …

DISCUSSION During gestation, the ductus venosus connects the umbilical vein with the left
portal system and

Previous studies of umbilical vein varix diagnosed prenatally have been small, and the
results have been contradictory. We wanted to determine whether prenatally diagnosed …

This case report concerns a late pregnancy complication, clinically apparent as severe
variable decelerations in the first stage of labor. Emergency cesarean section delivered a …

Umbilical cord ulceration is a rare condition presenting with sudden fetal bradycardia due to
fetal hemorrhage and in most cases leading to intrauterine death. A strong association with …

Intrauterine thrombosis of umbilical cord vessels is a rare event (2.5–4.5/10,000) and usually
followed by poor fetal outcome. We present the rare case of spontaneous intrauterine …

Aneurysm of the umbilical vessels is a rare abnormality and has seldom been diagnosed
prenatally. We report a case in which dilatation of the intra-amniotic umbilical cord was seen …