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Isolated Extra-Abdominal Umbilical Vein Varix in Newborn: A Case Report
Puneet Jairath1, Emily S Rosier1
1Wellspan Health, Department of Pediatrics and Neonatology, York, PA, USA.
Clinical Pediatrics
|June 17, 2026
Summary
Extra-abdominal umbilical vein varix (UVV) is rare and often missed prenatally. This case highlights its benign course and the importance of postnatal cord examination for diagnosis.
Area of Science:
- Perinatology
- Vascular Malformations
- Neonatal Medicine
Background:
- Umbilical vein varix (UVV) is a rare vascular anomaly.
- Extra-abdominal UVVs are exceptionally uncommon and frequently undiagnosed antenatally.
- Diagnosis is often incidental, occurring postnatally.
Purpose of the Study:
- To report a case of isolated extra-abdominal UVV.
- To emphasize the diagnostic value of postnatal umbilical cord examination.
- To discuss the clinical course and management of extra-abdominal UVV.
Main Methods:
- Case report of a term newborn with an undiagnosed extra-abdominal UVV.
- Utilized gross examination of the umbilical cord immediately after delivery.
- Performed postnatal ultrasound with Doppler and placental pathology examination.
Main Results:
- An isolated extra-abdominal UVV was identified on gross cord examination post-delivery.
- Postnatal imaging confirmed no intra-abdominal extension or herniation.
- Placental pathology verified a focal dilation of the umbilical vein.
Conclusions:
- Isolated extra-abdominal UVVs appear to follow a benign clinical course.
- Postnatal inspection of the umbilical cord is crucial for diagnosis when prenatal imaging is inconclusive.
- Early identification facilitates appropriate clinical evaluation and management.
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