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Cystic dilatation of umbilical cord associated with patent urachus
, 1, 1, 1, 1
Affiliations- 2nd Department of Gynecology and Obstetrics, Wroclaw Medical University, Wroclaw, Poland
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Abstract
An urachus is a remnant of allantois in embryo development constituting a connection between the dome of the bladder and umbilicus. It develops on day 16 after conception and closes during the pregnancy to form the median umbilical ligament. Patent urachus results from a failure in closing its lumen in 10–12 gestational weeks. This anomaly occurs in 1–2 babies in 100,000 births. We present the case of patent urachus. In 20 gestational weeks, a dilatation of the umbilical cord with an anechoic mass with a transverse dimension of 19 x 12 mm starting from the fetal insertion and length of 30 cm was seen on ultrasound without any other fetal and placental disorders. Histology showed cystic edema. Prenatal diagnosis of patent urachus can be difficult because this pathology may be mistaken with other, more dangerous causes of cord cysts; thus, the occurrence of cord cysts should be closely monitored.
Abstract
An urachus is a remnant of allantois in embryo development constituting a connection between the dome of the bladder and umbilicus. It develops on day 16 after conception and closes during the pregnancy to form the median umbilical ligament. Patent urachus results from a failure in closing its lumen in 10–12 gestational weeks. This anomaly occurs in 1–2 babies in 100,000 births. We present the case of patent urachus. In 20 gestational weeks, a dilatation of the umbilical cord with an anechoic mass with a transverse dimension of 19 x 12 mm starting from the fetal insertion and length of 30 cm was seen on ultrasound without any other fetal and placental disorders. Histology showed cystic edema. Prenatal diagnosis of patent urachus can be difficult because this pathology may be mistaken with other, more dangerous causes of cord cysts; thus, the occurrence of cord cysts should be closely monitored.
Keywords
patent urachus; prenatal diagnosis; giant umbilical cord
About this articleTitle
Cystic dilatation of umbilical cord associated with patent urachus
Journal
Issue
Article type
Clinical vignette
Pages
595-596
Published online
2021-08-16
Page views
1393
Article views/downloads
634
DOI
Pubmed
Bibliographic record
Ginekol Pol 2021;92(8):595-596.
Keywords
patent urachus
prenatal diagnosis
giant umbilical cord
Authors
Anna Rosner-Tenerowicz
Jerzy Florjanski
Wasyl Paslawski
Aleksandra Piatek
Mariusz Zimmer
References (4)- Schiesser M, Lapaire O, Holzgreve W, et al. Umbilical cord edema associated with patent urachus. Ultrasound Obstet Gynecol. 2003; 22(6): 646–647.
- Nobuhara KK, Lukish JR, Hartman GE, et al. The giant umbilical cord: an unusual presentation of a patent urachus. J Pediatr Surg. 2004; 39(1): 128–129.
- Brooks K, Guileyardo J, Le D, et al. Giant cystic umbilical cord associated with patent urachus and intrauterine fetal demise. Proc (Bayl Univ Med Cent). 2017; 30(2): 209–210.
- Sepulveda W, Wong AE, Gonzalez R, et al. Fetal death due to umbilical cord hematoma: a rare complication of umbilical cord cyst. J Matern Fetal Neonatal Med. 2005; 18(6): 387–390.
