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Updated: May 1, 2026

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Stenosis of the Inferior Vena Cava: A Murine Model of Deep Vein Thrombosis
Published on: December 22, 2017
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Complex malformation of the inferior vena cava
Summary
Inferior vena cava (IVC) malformations are rare in children and often asymptomatic. This case highlights complex IVC malformations presenting with leg discrepancy and abdominal varicose veins, necessitating thorough venous system evaluation.
Area of Science:
- Vascular Surgery
- Pediatric Radiology
- Embryology
Background:
- Inferior vena cava (IVC) malformations are rare, particularly in pediatric patients, and typically present asymptomatically.
- These anomalies stem from developmental errors in the embryonic venous system or secondary to perinatal venous thrombosis.
- Varicose veins, especially in the abdomen, can be indicative of underlying deep venous system abnormalities.
Observation:
- A 14-year-old boy presented with leg length discrepancy and superficial abdominal varicose veins prior to cosmetic surgery.
- Initial investigations revealed normal laboratory results and hypoplasia of the retrohepatic IVC segment on ultrasound.
Findings:
- CT angiography diagnosed a complex malformation: retrohepatic IVC atresia, azygos vein cavo-caval anastomosis, abnormal IVC formation, and absence of the left iliac vein.
- This case illustrates a rare congenital venous anomaly in a pediatric patient.
Implications:
- Abdominal varicose dilations in children warrant thorough investigation for underlying caval and portal venous system malformations.
- Early detection of such complex venous anomalies is crucial for appropriate management and preventing complications.
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