Infrahepatic caudal/inferior vena cava interruption with azygos/hemiazygos continuation. Vascular anomaly in swine

Miran Jeromel, Dusan Pavcnik

Research output: Contribution to journalArticle

5 Scopus citations


Background. Swine are commonly used as a model to study congenital cardiovascular defects that occur in humans and these models have been both spontaneous and experimentally induced. Ventricular septal defect, patent ductus arteriosus, and atrial septal defect (ASD) are examples of experimentally induced models. Absence of caudal/ inferior vena cava (CVC/IVC) with azygos/hemiazygos continuation is an uncommon vascular anomaly.Case report. The vascular anomaly presented in this case report was an incidental finding on a pig that was evaluated for experimental percutaneous atrial septal defect creation and its closure using a percutaneous femoral vein approach. Absence of CVC/IVC was confirmed by venography and necropsy.Conclusions. To the best of the investigators knowledge, this is the first report of absence of CVC/IVC with azygos/hemiazygos continuation in the swine.

Original languageEnglish (US)
Pages (from-to)149-152
Number of pages4
JournalRadiology and Oncology
Issue number3
Publication statusPublished - Sep 1 2010



  • azygos vein
  • congenital vascular anomaly
  • experimental animal model
  • hemiazygos vein
  • inferior vena cava

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging

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