Prenatal diagnosis of umbilical artery thrombosis in the second trimester: a case report

Objective Thrombosis of umbilical artery is a rare condition. The diagnosis is established commonly in the third trimester after detection of fetal distress or intrauterine growth retardation, or could be established after delivery. Also, the management of the condition is conflicting after the diagnosis. Case(s) Here we reported an umbilical artery thrombosis case that was diagnosed in the second trimester after referral for an umbilical cord cyst. After the diagnosis at 24th week of pregnancy, she had been followed up weekly. She had been delivered electively at the 34th week of pregnancy uneventfully. The diagnosis was confirmed postnatally. Conclusion The prenatal diagnosis of umbilical arterial thrombosis is so important to prevent perinatal morbidity. When umbilical cord cysts are detected, further evaluation is required in terms of umbilical artery thrombosis.

Unusual umbilical cord finding in a neonate

Umbilical cord cyst refers to any cystic lesion that are associated with the umbilical cord. They are classified as true cysts or pseudocysts. True cysts are small remnants of the allantois, whereas false cysts originate from liquefaction of Wharton Jelly. In present case, cyst was diagnosed at birth without any associated congenital anomalies and resolved spontaneously within a few days requiring nil surgical intervention. Umbilical cord cysts deserve special attention since 20% of them, regardless of type, are associated with structural or chromosomal anomalies. Because of this, fetal karyotyping and amniocentesis should be considered when cysts persist beyond the first trimester.

Umbilical cord cyst: a diagnostic dilemma

Umbilical cord cyst refers to any cystic lesion associated with the umbilical cord. Cord cysts can be defined as true or false cysts and may occur in any location along the cord. They are irregular in shape and are located between the cord vessels. Authors are reporting the case of an infant with an umbilical cord tumor which had twice been misdiagnosed previously as a hemangioma, based on ultrasound image of its cystic and solid component with good vascular supply. The ultrasound image most likely suggestive of a hemangioma as a differential diagnosis led to caesarean section in our patient (based on large size of the lesion and fear of rupture of same during process of labour). The definitive diagnosis was made only after birth of the baby. Final diagnosis of true umbilical cord cyst was made after histopathological examination. Thus, there can be confusion in the diagnosis between umbilical cord hemangiomas and umbilical cord cysts based on ultrasound.

Allantoic cyst of the umbilical cord detected in the first trimester with good pregnancy outcome

Allantoic cysts of the umbilical cord are embryological remnants of either the allantois or the omphalomesenteric duct. These cysts represent a rare ultrasound finding especially in the first trimester. Allantoic cysts can be associated with fetal malformations and chromosomal aberrations or are characterised by spontaneous resolution and good pregnancy outcome. Here we present a rare case of umbilical cord cyst detected by ultrasound in the first trimester with later resolution and favourable pregnancy outcome.