Umbilical cord cysts in the second and third trimesters: significance and prenatal approach

Zangen, Rachel; Boldes, R.; Yaffe, Haim; Schwed, P; Weiner, Zeev

doi:10.1002/uog.7576

Cited by 59 publications

(70 citation statements)

References 34 publications

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“…In 2010, Zangen et al [7] suggested that the strong association between cysts of the umbilical cord observed during the second and third trimesters of pregnancy and aneuploidy in the literature is biased mainly toward the tendency to report abnormal cases. The case reported here may support this recent hypothesis [7].…”

Section: Discussionmentioning

confidence: 97%

Prenatal ultrasonographic findings of large pseudocysts and edema of the umbilical cord

2010

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Section: Discussionmentioning

confidence: 97%

Prenatal ultrasonographic findings of large pseudocysts and edema of the umbilical cord

2010

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“…Sepulveda et al reported that seven (70%) of ten fetuses with umbilical cord pseudocysts had chromosomal abnormalities [2]. In contrast, Zangen [9] et al recently reported about 10 cases of umbilical cord cysts in the second and third trimesters. Eight of ten cases showed normal neonatal outcomes.…”

Section: Discussionmentioning

confidence: 87%

Large pseudocyst of the umbilical cord detected in the second trimester

et al. 2010

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We present a case of a large umbilical cord cyst detected at 21 weeks of gestation. Serial ultrasonographic examination revealed a single umbilical artery and progression of the cystic mass. A 2,842-g male infant was delivered at 37 weeks of gestation, and we confirmed that the umbilical cord cyst was a pseudocyst in our pathological examination. This case demonstrated an uneventful course of pregnancy despite the large umbilical cord pseudocyst.

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“…The prevalence, in the first trimester, is 0.4-3.4% and should lead to the suspicion of patent urachus [2,6]. Color flow imaging is used to identify the umbilical vessels surrounding the umbilical cyst, confirming that it is an allantoic cyst and not a pseudocyst [7,8]. Prenatal ultrasound findings of patent urachus consist in anechoic proximal cord cyst communicating with the bladder [5].…”

Section: Discussionmentioning

confidence: 99%

Allantoic Cyst Prior to Transient Megacystis in Patent Urachus: A Paradoxal Association?

Freitas¹

2014

Gynecol Obstet (sunnyvale)

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Patent urachus is a rare umbilical anomaly with an incidence of 1 to 2.5 per 100,000 deliveries. The urachus is a thin fibromuscular tubular structure that represents the intra-abdominal portion of allantois extending from umbilicus to the vertex of the bladder. Under normal conditions, the urachus is not seen in utero, since the obliteration of its lumen usually occurs at six weeks of gestational age. An anomaly in allantois involution can result in patent urachus, umbilical urachal sinus, vesicourachal diverticulum, urachal cyst, or alternating sinus and should always be included in the differential diagnosis of midabdominal cysts. Before the advent of prenatal sonography, this condition was always diagnosed in early neonatal period. The authors report a rare case of a patent urachus suspected in the first trimester ultrasound. Case ReportA 36 year old, primigravida, without medical relevant history, presented to our hospital for the first trimester sonographic screening at 13 weeks of gestational age. Transabdominal ultrasound revealed a singleton pregnancy, a fetus with a crown-rump length of 67 mm with normal nuchal translucency thickness and an anechoic proximal umbilical cord cyst close to the abdominal insertion (Figure 1). Color flow imaging showed both umbilical arteries surrounding the cyst (Figure 1), confirming that was an allantoic cyst. Two weeks later, a follow-up scan revealed megacystis with a longitudinal diameter of 22.6 mm, two umbilical cord cysts with 18.5 and 12.7 mm of diameter (Figure 2), and a communication between the proximal umbilical cyst and the bladder (Figure 2). Fetal karyotype was normal (46,XY) and no other anomalies were detected. All the findings and prognosis were explained to the parents who opted for a second opinion. Contradictory information was provided and they returned to our center for pregnancy termination. The good prognosis associated to the findings was once again explained and the couple decided to continue the pregnancy with follow up in our hospital. Subsequent ultrasound evaluations revealed an increase in size of the umbilical cord cysts at 16 weeks scan (28 and 27 mm), Wharton jelly edema and at 23 weeks, fetal bladder was not visualized, suggesting prolapsed bladder (Figure 3).The pregnancy progressed normally with no further complications. A cesarean section delivery was performed at 38 weeks and male neonate weighing 3500 g with Apgar scores of 9 and 10 at 1 and 5 minutes, respectively, was delivered. Clinical evaluation of newborn was consistent with prenatal findings, except for the bladder prolapse. On day 2, laparotomic resection of the patent urachus was performed without complications. Follow-up was uneventful and the infant is now two-years-old.

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Umbilical cord cysts in the second and third trimesters: significance and prenatal approach

Abstract: Objectives

Cited by 59 publications

References 34 publications

Prenatal ultrasonographic findings of large pseudocysts and edema of the umbilical cord

Prenatal ultrasonographic findings of large pseudocysts and edema of the umbilical cord

Large pseudocyst of the umbilical cord detected in the second trimester

Allantoic Cyst Prior to Transient Megacystis in Patent Urachus: A Paradoxal Association?

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