Presentation of an umbilical cord cyst with a surprising jet: a case report of a patent urachus

Umbilical cord cysts: Classification, diagnosis, prognosis, and pregnancy recommendations

Umbilical cord cysts (UCCs)-cysts located in the umbilical cord that are derived from an abnormal embryonic development process-are typically an incidental discovery during prenatal ultrasound. It can be described as either a pseudocyst or a true UCC, which results from focal edema or degeneration of Wharton jelly or the remnants of embryonic development, respectively. Due to the relative rarity of the UCC, the clinical guidance of UCCs is not yet available. Herein, the aim of this paper is to discuss the classification, diagnosis, prognosis, and clinical management of UCCs through a literature review, in order to improve the understanding of UCCs among clinical obstetricians and pediatricians.

Prenatally Ruptured Patent Urachus: A Case Report and Review of Literature

Patent urachus is a type of urachal anomaly in which the urachus does not tail off but remains connected to the bladder in the umbilicus. The prevalence of patent urachus is very low. Herein, we report a case of patent urachus ruptured and exposed to amniotic fluid in utero. In this case, the size decreased after the second trimester, which was thought to be due to rupture in utero. After delivery, patent urachus was confirmed by inserting a foley catheter, which runs through a ruptured cyst on umbilical cord insertion. The day after delivery, the neonate underwent surgical excision of the urachal cyst and closing umbilicus. The mechanism of patent urachus rupture is unknown. As the fetus matures, it is thought that the higher intravesical pressure may affect the rupture of the cyst. Patent urachus could be ruptured in the uterus spontaneously, and surgical correction is needed. Therefore, prenatal differential diagnosis is important.

Congenital Cyst of the Umbilical Cord

Umbilical cord cysts warrant evaluation for structural defects and chromosomal anomalies such as trisomy 18, depending on the type of cyst. The appearance of an enlarged or "gigantic" cord has particular association with a patent urachus, often requiring operative exploration to repair the associated urachal remnant. We describe the unusual case of an umbilical cord cyst-measuring 9 cm in maximal diameter and comprising histopathological features of an urachalcyst-presenting in a healthy ex-36 week newborn with no associated anomalies.