Angiomyxoma A Rare Finding Associated with Congenital Cyst Malformation of the Umbilical Cord

Case Report

Austin J Clin Case Rep. 2023; 10(3): 1283.

Angiomyxoma – A Rare Finding Associated with Congenital Cyst Malformation of the Umbilical Cord

Yuvaraj H; Aboda A*; Pettigrew I; McCully B

Department of Obstetrics & Gynaecology, Mildura Base, Public Hospital, Australia

*Corresponding author: Ayman Aboda Department of Obstetrics & Gynaecology, Mildura Base, Public Hospital, Australia. Email: aymanaboda@hotmail.com

Received: April 21, 2023 Accepted: May 15, 2023 Published: May 22, 2023

Abstract

Although rare, umbilical cord cysts may be associated with prenatal aneuploidy and foetal developmental anomaly. If unresolved, they may affect growth support with a risk of progressive or sudden vascular compromise. In this report, we discuss the case of a 33-year-old woman who presented with a large septate umbilical cord cyst detected incidentally during routine morphology scanning. The patient had low-risk first-trimester combined screening, later confirmed by Non-Invasive Prenatal Testing (NIPT). She went on to have detailed antenatal ultrasound surveillance and delivered successfully at term. The case highlights the importance of multidisciplinary collaboration with tertiary partners to align clinical care with best practices and evidence-based decision-making. This is particularly relevant in regional settings where the workforce may be strained or transient and the knowledge base of rare conditions less robust.

Keywords: Angiomyxoma; Umbilical cord cysts; Congenital abnormality; Aneuploidy

Case Presentation

A 33-year-old Caucasian woman with a history of three uneventful deliveries attended a regional hospital for antenatal care. Her 12-week ultrasound scan showed a normal intrauterine pregnancy consistent with gestational age. The nuchal translucency was within normal limits, and no adnexal cysts or masses were detected. Non-Invasive Prenatal Testing (NIPT) results confirmed low risk for trisomy 13, 18, and 21. Routine antenatal screening, including viral serology, was normal. At 20 weeks, she had routine second-trimester scan which showed normal fetal morphology, an anterior, non-praevia placenta with normal cord insertion. Unexpectedly, a large cystic septate structure measuring 65x32mm was observed within the umbilical cord. The findings were reviewed by a tertiary scan, confirming two large, avascular umbilical cysts that measured 62.4x40.6x41.2mm and 53.3x48.3x51.6mm. There was no evidence of cord compression or impaired vascular flow. The diagnosis was consistent with two septate umbilical cord cysts, likely arising as areas of oedema within the Wharton jelly (Figure 1).